I'm looking for an adaptor that I can use on my Tab S7+ with my existing 3.5mm headphones but still charge at the same time (thinking of long flights).
Having a look online, it looks like some USB-C to 3.5mmm adaptors don't work on all devices and not all charger adaptors are equal. Can anyone advise me on a suitable adaptor?
sketch-UK said:
I'm looking for an adaptor that I can use on my Tab S7+ with my existing 3.5mm headphones but still charge at the same time (thinking of long flights).
Having a look online, it looks like some USB-C to 3.5mmm adaptors don't work on all devices and not all charger adaptors are equal. Can anyone advise me on a suitable adaptor?
Click to expand...
Click to collapse
Apple usb-c to 3.5mm. it is best value for the cost. <$10 on amazon. It works like DAC, digital to audio converter that cost much more by any other company. If the sound matters, get it and then. If you want to charge, purchase a usb-c hub that gives you power and the other stuff you might want like hdmi out and additional usb c ports.
smartymcfly said:
Apple usb-c to 3.5mm. it is best value for the cost. <$10 on amazon. It works like DAC, digital to audio converter that cost much more by any other company. If the sound matters, get it and then. If you want to charge, purchase a usb-c hub that gives you power and the other stuff you might want like hdmi out and additional usb
Is it working for sure? Please help me.
Click to expand...
Click to collapse
joecaesar said:
smartymcfly said:
Apple usb-c to 3.5mm. it is best value for the cost. <$10 on amazon. It works like DAC, digital to audio converter that cost much more by any other company. If the sound matters, get it and then. If you want to charge, purchase a usb-c hub that gives you power and the other stuff you might want like hdmi out and additional usb
Is it working for sure? Please help me.
Click to expand...
Click to collapse
Help you with what?
Click to expand...
Click to collapse
smartymcfly said:
joecaesar said:
Help you with what?
Click to expand...
Click to collapse
Does it work with tab s7?
Click to expand...
Click to collapse
I wanted to be able to charge at the same time (thinking of that wonderful time when we can take long flights again)
This looks like a good choice. It states that it works with the S20 and Note 20 Ultra. Does this mean that it will work with Tab S7+
https://www.amazon.co.uk/gp/product...&pf_rd_p=e632fea2-678f-4848-9a97-bcecda59cb4e
CableCreation USB-C to 3.5mm adapter
I just ordered a CableCreation branded one that works and sounds great. It also has a passthrough for power. The fit and finish is pretty stellar as well.
Search Amazon for "CableCreation 2-in-1 USB C Type-C to Hi-Res 3.5mm Audio"
joecaesar said:
smartymcfly said:
Apple usb-c to 3.5mm. it is best value for the cost. <$10 on amazon. It works like DAC, digital to audio converter that cost much more by any other company. If the sound matters, get it and then. If you want to charge, purchase a usb-c hub that gives you power and the other stuff you might want like hdmi out and additional usb
Is it working for sure? Please help me.
Click to expand...
Click to collapse
joecaesar said:
smartymcfly said:
Does it work with tab s7?
Click to expand...
Click to collapse
This works with tab s7+
I have usb-c dock block, and it work with the apple usb-c dac and hdmi out to the tv and it charges at the same time when it is also connected to power source.
Click to expand...
Click to collapse
Click to expand...
Click to collapse
old school hyperdrive
if you want it all... check out the hyperdrive:
https://www.hypershop.com/products/hyperdrive-6-in-1-hub-for-ipad?variant=19332717412414
i picked this up on the kickstarter campaign when it first came on the scene. i was using the ipad pro then.
i forgot i had this thing until the thread reminded me of it.
it has all you need. hdmi, SD card, microsd, hdmi, type c with pd charging, 3.5mm jack, usb... the who ball of wax. worth the coin.
It actually not really matters which adapter you buy - as long it includes a DAC.
I got these two (all < 15 €):
JSAUX USB-C Headphone Adapter and Charging
https://www.amazon.de/gp/product/B08B3MY35T/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
ESR USB-C to 3.5mm Headphone Adapter
https://www.amazon.de/gp/product/B089GVWNF2/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
both work well. And the cable is rather good quality - so a bit hard to bend. That's fine, as some years a ago the first I bought failed after 1 month of usage due to the cable.
I bought them as they where the cheapest of all options and the review told they have solid cables.
Also a rather old one I bought 3 years ago works (do not know the brand, sorry).
But: you need one with a DAC - I bought some very cheap from china without, and: no audio.
The first one offers simultaneously charging, but is bigger in size. And I do not hear any white noise, though some user review report so. Might also depend on the head phones you are using? Also: a DAC requires battery. So: unplug them if not needed.
Now: I only need a cheap but worthy hub. The only I found interesting so far offers no headphone jack...
The other (link) below did the job but was not fitting.
Maxonar USB C Hub for iPad Pro 2018 Type C 6 in 1 Hub with USB 3.0 (5 Gbps)
https://www.amazon.de/-/en/gp/product/B07VMK7GTT/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1
I liked the fact to have an usb-a, charging+data usb-c, audio, and hdmi port. However, all other option either are reported to wobble. So any suggestion is highly appreciated.
BTW: I own the tab s7, but this should not matter. Both should work with the s7+ as well.
Related
Hi guys I want to use BOSE AROUND EAR/NOISE CANCELLING HEADPHONES on my vogue so i want to buy a usb splitter for same.
also some where i heard that using usb splitter decreaseds the sound quality of headphones
the BOSE uses 3.5MM jack
link to bose:http://www.boseindia.com/retail/bose...647&Nav_Id=647
link to a htc splitter that i think is the best i saw it's also of original htc
link:http://cgi.ebay.com/3.5mm-USB-Adapte...23214003r14433
so please guys help me coz tghe bose headphones are of around 170$ so i dont wanna waste my money
also is the same headphones also compaitable with BLACKBERRY STORM
i will also use the same headphones on blackberry also
thanks guys
hope a quick reply
I tried using the same USB to 3.5mm adapter I used in WM on Android the other day and it didn't work. Tried with two different builds.
So do you guys think SPACE is the issue for phone makers to continuously leave out 3.5mm jacks..?
cbaty08 said:
So do you guys think SPACE is the issue for phone makers to continuously leave out 3.5mm jacks..?
Click to expand...
Click to collapse
Nah they just want you to buy as much oem stuff as possible. Alot of people buy phone,headset,etc. from their carrier.
Reddog80p said:
Nah they just want you to buy as much oem stuff as possible. Alot of people buy phone,headset,etc. from their carrier.
Click to expand...
Click to collapse
Yeah, especially since the stupid USB adapter that comes with the Vogue doesn't even have a 3.5mm jack on it.
TheKartus said:
Yeah, especially since the stupid USB adapter that comes with the Vogue doesn't even have a 3.5mm jack on it.
Click to expand...
Click to collapse
mine came with the splitter in the box.
zenulator said:
mine came with the splitter in the box.
Click to expand...
Click to collapse
Verizon Vogue (XV6900) in the US don't even come with a MicroSD Card. Just the Y-splitter Cable,usb sync cable, ac plug and an extra stylus is included.
so wat u guys suggest should i take the USB splitter to use it with VOGUE i surely want to use BOSE AROUND EAR HEADPHONES
the link ::http://www.boseindia.com/retail/bose-product-detail.aspx?Prd_Id=17&Cat_Id=647&Nav_Id=647
anybody plz suggest me something!!!!
http://www.amazon.com/OEM-3-5mm-Headset-Adapter-Converter/dp/B001RXTDP2/ref=pd_sim_e_3
the link to the splitter which i want to buy!!!
http://www.amazon.com/OEM-3-5mm-Headset-Adapter-Converter/dp/B001RXTDP2/ref=pd_sim_e_3
Does anyone know of a good vogue to 3.5 mm adapter? i'm really desperate for one, every one I buy seems to have crackling, and not work! very frustrating!
I just plug headphones into a 2.5 mm to 3.5 mm adapter and then into the supplied usb Y-splitter that came with my vogue. You can find them everywhere online and at places locally like radio shack.... http://www.radioshack.com/product/index.jsp?productId=2603246 or try something like these... http://www.google.com/products?oe=U...esult_group&ct=image&resnum=1&ved=0CBgQzAMwAA
When I first bought my vogue I bought a bunch of cheap accessories for it including an htc ExtUSB to 3.5 mm adapter. I would say that the quality you will get out of it is limited to the DACs (digital to analog converters) built in the phone. I have found it to be acceptable for a phone. The output power of the thing even manages to handle a pair of larger headphones I have at a respectable volume.
All that to say: If you are expecting audiophile grade audio, don't waste too much money on headphones if you aren't going to use them on anything else. It doesn't sound bad though.
A while ago I bought a decent pair of bluetooth in-ear headphones and I am very pleased with those.
Since I bought that I cut apart one of my other htc accessories to make a nice cable that allows me to listen to music in my car from my phone while charging out of one cable.
Reddog80p said:
I just plug headphones into a 2.5 mm to 3.5 mm adapter and then into the supplied usb Y-splitter that came with my vogue. You can find them everywhere online and at places locally like radio shack.... http://www.radioshack.com/product/index.jsp?productId=2603246 or try something like these... http://www.google.com/products?oe=U...esult_group&ct=image&resnum=1&ved=0CBgQzAMwAA
Click to expand...
Click to collapse
I guess I can do that, was just hoping for a less bulky solution but perhaps it won't be so crackly using the included stuff
this will work fine, is cheap, and small.
http://cgi.ebay.ca/For-HTC-T-Mobile...wItemQQptZPDA_Accessories?hash=item2a03a10180
Reddog80p said:
I just plug headphones into a 2.5 mm to 3.5 mm adapter and then into the supplied usb Y-splitter that came with my vogue. You can find them everywhere online and at places locally like radio shack.... http://www.radioshack.com/product/index.jsp?productId=2603246 or try something like these... http://www.google.com/products?oe=U...esult_group&ct=image&resnum=1&ved=0CBgQzAMwAA
Click to expand...
Click to collapse
strange, I tried this and the sound coming through is only mono. I used a stereo 2.5 to 3.5 so I don't know what else could be wrong
Power to the Headphones might be an issue if you are getting crackling.
You could try getting one of those mini-amps for high-end head phones
when the device isnt out putting enough power but of course that is just
more cost/pocket space :<
patelaquib said:
http://www.amazon.com/OEM-3-5mm-Headset-Adapter-Converter/dp/B001RXTDP2/ref=pd_sim_e_3
the link to the splitter which i want to buy!!!
Click to expand...
Click to collapse
That one came with my Touch Pro, works GREAT!! Thanks for reminding me about it, using it right now But I will have to wait to test it on my wife's Vogue, but it's running 6.5, not android.
can you buy one or do they even exhist? what about a headphone adapter, i also want to plug phone into my car stereo and current cable does not turn off phone speaker.
wolffer0 said:
can you buy one or do they even exhist? what about a headphone adapter, i also want to plug phone into my car stereo and current cable does not turn off phone speaker.
Click to expand...
Click to collapse
Micro-USB and HDMI are two different standards that don't mix. Would not work.
Can you Bluetooth to your car? That's how I do it and it works great!
After researching, it appears that there may be a cable made by Samsung that converts Micro-USB to HDMI, but whether or not it works on our phones, or at all for that matter, is not confirmed.
seen a picture of a cable for the hdmi and was told by sprint rep there will be one but have not found one yet, or maybe samsung snowjobed me. the 1/8" cable i am looking for converts the 4 segment plug to a 3 segment plug and i dont need any other extra microphone or volume control that probably wont work anyway
done12many2 said:
After researching, it appears that there may be a cable made by Samsung that converts Micro-USB to HDMI, but whether or not it works on our phones, or at all for that matter, is not confirmed.
Click to expand...
Click to collapse
See this vendor page:
OEM Samsung HDMI TV Out Cable, micro-USB to HDMI ECC1HU0BBE
Brand/model: Samsung ECC1HU0BBEBSTD
Contrary to previously received information, this cable does not provide HD TV output capabilities on U.S. Samsung Galaxy S phones (Captivate, Vibrant, Epic 4G, Fascinate). If you purchased this item from DayDeal, please stay tuned for email from our Customer Service department for further information including information on obtaining a refund.
Click to expand...
Click to collapse
so that is it than .I was tricked into buying it over the evo. now the only thing it has going for it is the hardware keyboard . And I also expect it will never see froyo either .and no rooting either like the evo . samsung the liars!! knew I should have got the evo, and my couz will never stop giving me crap about it now.
Get a dlna dvd player as a dedicated media player and use the allshare from your epic to the player..went to best buy they have an lg blu ray dlna player for around 189. I can already stream from my windows 7 laptop to the epic with a small amount of buffering. Better yet get a ps3 and use that hdmi out and a dlna player AIO.
Sent from my SPH-D700 using XDA App
wolffer0 said:
so that is it than .I was tricked into buying it over the evo. now the only thing it has going for it is the hardware keyboard . And I also expect it will never see froyo either .and no rooting either like the evo . samsung the liars!! knew I should have got the evo, and my couz will never stop giving me crap about it now.
Click to expand...
Click to collapse
It will 100% see Froyo as we have Froyo leaks on the other phones. We already have root...and as for the HDMI <-> microsub...if Samsung does not make it work I'm pretty sure the community will..
wolffer0 said:
can you buy one or do they even exhist? what about a headphone adapter, i also want to plug phone into my car stereo and current cable does not turn off phone speaker.
Click to expand...
Click to collapse
Was just at BestBuy, they have in a Micro USB to HDMI cable for 29.99, made by Dynex.
Ofcourse this will only work on the Evo, as the Epic wouldn't send any video out that port i think.
LordLugard said:
Was just at BestBuy, they have in a Micro USB to HDMI cable for 29.99, made by Dynex.
Ofcourse this will only work on the Evo, as the Epic wouldn't send any video out that port i think.
Click to expand...
Click to collapse
Two different cables. The Evo uses "micro-HDMI" to HDMI and Samsung phones use "micro-USB" to HDMI. The Epic does NOT (presently) have a video out option, so neither will work. Save your $.
TheMostToys said:
Two different cables. The Evo uses "micro-HDMI" to HDMI and Samsung phones use "micro-USB" to HDMI. The Epic does NOT (presently) have a video out option, so neither will work. Save your $.
Click to expand...
Click to collapse
Oh yeah, my bad. Thanks.
You can easily get video out on the Epic, use a 3.5mm to RCA cable.
http://www.google.com/products/cata...og_result&ct=result&resnum=4&ved=0CCgQ8wIwAw#
Here's a video http://www.youtube.com/watch?v=997kYrCr5MQ
Nope, no video out via jack for us.
noahgray said:
You can easily get video out on the Epic, use a 3.5mm to RCA cable.
http://www.google.com/products/cata...og_result&ct=result&resnum=4&ved=0CCgQ8wIwAw#
Here's a video http://www.youtube.com/watch?v=997kYrCr5MQ
Click to expand...
Click to collapse
Unless something has been updated the option to turn on TV is not available for the Epic 4g.
noahgray said:
You can easily get video out on the Epic, use a 3.5mm to RCA cable.
http://www.google.com/products/cata...og_result&ct=result&resnum=4&ved=0CCgQ8wIwAw#
Here's a video http://www.youtube.com/watch?v=997kYrCr5MQ
Click to expand...
Click to collapse
Yeah...that's for the vibrant. Our phones were neutered.
Yes, I tried it with two 3.5mm to RCA cables I have. None work. No software options to turn on, either.
Hi All,
I was searching for USB Dock for Note and found THIS on eBay.
for only $6.78 + Free Shipping :laugh:
I saw many of THE SAME docks going for $19.99 - $24.99 on eBay and Amazon,So this is definitely a good Deal IMO.
One Another Good thing is Economy International Shipping is also cheap on this.
only $1.99 to INDIA in my case. So gifted one to my buddy!!!
I dont know if I plug in MHL cable in back and use it as HDMI Dock
That would be awesome
-----------------------------------------------What Works and What Dose not------------------------------------------------
1. MHL Cable : NO (You can not connect MHL cable behind the Dock to do HDMI out )
2. Data X'fer : YES (You can simply attach your data cable to Computer to Transfer files to/from Phone)
3. USB OTG : ??? (Dont know why anybody would do this but i will check it tonight see if it works!)
Click to expand...
Click to collapse
Thnx.
Thanks.
BTW I offered the seller 5.99 ea. for two,he gave me $6.49 for TWO.
So try offering him lower price. not a huge saving but hey dosent hurt to try!
MHL wont work
Well apparently, this dock is only good for charging / desk clock only.
you can not use MHL cable behind the dock and HDMI out.
It doses charges via MHL cable but dose not do HDMI out.
I know tht part sucks the most, but that is what it is.
Found a way to MOD the dock to work with MHL and USB OTG.
Stay tuned for [MOD] DIY Turn your SGNote Dock to do MHL & USB OTG.
With full guide and high res pics.
Sent from my GT-N7000 using Tapatalk 2
Sorry folks I am too busy with LIFE. so I am not done with the full guide yet,
but you can find it HERE
Hello.
I was just thinking it would be possible to usb host a Dac ( in my case fiio e-10k)
It seems that it got the output power(cause it can charge others phones) but does it have the drivers?
Any toughts on this?
hargibi said:
Hello.
I was just thinking it would be possible to usb host a Dac ( in my case fiio e-10k)
It seems that it got the output power(cause it can charge others phones) but does it have the drivers?
Any toughts on this?
Click to expand...
Click to collapse
If it's designed correctly, you don't need a driver.
I have headphones that have a DAC and they work fine on all the phones that support USB-OTG.
hargibi said:
Hello.
I was just thinking it would be possible to usb host a Dac ( in my case fiio e-10k)
It seems that it got the output power(cause it can charge others phones) but does it have the drivers?
Any toughts on this?
Click to expand...
Click to collapse
im interested too
i bought the Zorloo USB headphones from indigogo and they are the best sounding headphones i use with my N5...
wonder if using them with this adapter will work on the N6P.... (guess ill find out next month when i get the phone and adapter)
https://oneplus.net/oneplus-usb-type-c-adapter
chaco81 said:
im interested too
i bought the Zorloo USB headphones from indigogo and they are the best sounding headphones i use with my N5...
wonder if using them with this adapter will work on the N6P.... (guess ill find out next month when i get the phone and adapter)
https://oneplus.net/oneplus-usb-type-c-adapter
Click to expand...
Click to collapse
I bought 4 pairs on their family pack during the campaign.
My wife has one, daughter has a pair and I have two.
so im looking to replace my current phone. i was considering the hauwei mate 9 but i cant bring myself to give that damned company any more of my money. they make great hardware by their skin (EMUI) is horrendous! anyway, it seems that im going to go for the G6 since the price keeps dropping. my only gripe is the headphone jack placement.
i honestly dont care if my next phone has it or not but if it does it needs to be on the bottom. but seeing as my top pick is the G6 im hoping to have options. so, has anyone tried using a USB-C to 3.5mm adapter? if so, which one?? any and all help is appreciated!
G6 have normal audio jack!? Why You need adapter?
Xetmes said:
G6 have normal audio jack!? Why You need adapter?
Click to expand...
Click to collapse
as i said... i dont like the headphone jack on top. i keep my phone in my pocket at all times.
droidbot1337 said:
as i said... i dont like the headphone jack on top. i keep my phone in my pocket at all times.
Click to expand...
Click to collapse
Yeah, put the phone other way round lol Is it really such problem to do so [emoji848]
Wysłane z mojego LG-H870 przy użyciu Tapatalka
use a BT headphone
droidbot1337 said:
so im looking to replace my current phone. i was considering the hauwei mate 9 but i cant bring myself to give that damned company any more of my money. they make great hardware by their skin (EMUI) is horrendous! anyway, it seems that im going to go for the G6 since the price keeps dropping. my only gripe is the headphone jack placement.
i honestly dont care if my next phone has it or not but if it does it needs to be on the bottom. but seeing as my top pick is the G6 im hoping to have options. so, has anyone tried using a USB-C to 3.5mm adapter? if so, which one?? any and all help is appreciated!
Click to expand...
Click to collapse
I used the one that came with the Essential PH-1.
I have also used USB-C earbuds with a DAC in the cable.
No issues.
tech_head said:
I used the one that came with the Essential PH-1...... No issues.
Click to expand...
Click to collapse
THANK YOU!!! wait...... wat?? how did you get the adapter? also, are you using a custom ROM or stock? should it matter? is there a chance other adapters might work? thanks for your help. you have sold me on the G6!
droidbot1337 said:
THANK YOU!!! wait...... wat?? how did you get the adapter? also, are you using a custom ROM or stock? should it matter? is there a chance other adapters might work? thanks for your help. you have sold me on the G6!
Click to expand...
Click to collapse
I bought an Essential PH-1 and returned it.
But I also bought an extra charger and adapter on eBay.
Completely stock. The one from a Moto Z works also. My wife has a Moto Z.
I have tried a number of USB-C to 3.5mm adaptors on my unrooted LG-H870DS with no luck. The last two I ordered I made sure they were USB-C 3.1 and still nothing. The phone never detects anything when I plug it in.
If anyone can find one that does work without root, please let me know!
Pondy said:
I have tried a number of USB-C to 3.5mm adaptors on my unrooted LG-H870DS with no luck. The last two I ordered I made sure they were USB-C 3.1 and still nothing. The phone never detects anything when I plug it in.
If anyone can find one that does work without root, please let me know!
Click to expand...
Click to collapse
I'm using the one that came with an Essential PH-1.
I'm also using a set of earbuds with USB-C.
If you are paying less than about $10, it's not going to work.
You need a USB-C digital audio interface.
There is an analog spec and those cheap cables implement analog.
The digital spec adapters have a USB DAC and AMP in the cable and will cause the phone to supply power.
This should work:
https://www.theverge.com/circuitbre...-ultra&acc=usb-c-digital-to-3-5mm-htc-u-ultra
Search for "usb-c dac headphone adapter"
tech_head said:
I'm using the one that came with an Essential PH-1.
I'm also using a set of earbuds with USB-C.
If you are paying less than about $10, it's not going to work.
You need a USB-C digital audio interface.
There is an analog spec and those cheap cables implement analog.
The digital spec adapters have a USB DAC and AMP in the cable and will cause the phone to supply power.
This should work:
https://www.theverge.com/circuitbre...-ultra&acc=usb-c-digital-to-3-5mm-htc-u-ultra
Search for "usb-c dac headphone adapter"
Click to expand...
Click to collapse
Thanks man, I just ordered one. I gave up after searching for ages.
tech_head said:
........If you are paying less than about $10, it's not going to work.
You need a USB-C digital audio interface. There is an analog spec and those cheap cables implement analog.
The digital spec adapters have a USB DAC and AMP in the cable and will cause the phone to supply power....
Click to expand...
Click to collapse
whoa!! thanks for all the great info! btw, dont most phones have a DAC built into them?? i know with LG the v series does. a DAC with USB-C audio would be amazing!
Pondy said:
Thanks man, I just ordered one. I gave up after searching for ages.
Click to expand...
Click to collapse
well, i thought i was the only one interested in this topic. welcome aboard! now that google has gone jackless we should be getting more great adapters and headsets. its a great time!!
droidbot1337 said:
whoa!! thanks for all the great info! btw, dont most phones have a DAC built into them?? i know with LG the v series does. a DAC with USB-C audio would be amazing!
Click to expand...
Click to collapse
The problem with trying to use the USB-C without a digital cable and just the jack wire to the two extra pins, is that not everyone supports analog audio over USB-C.
The only way to be sure a USB-C audio adapter will work is to use a digital adapter with a DAC and headphone amp in the dongle.
You will immediately know if it works because it will require power from the USB-C port.
A $2 adapter probably won't work as it will be analog only.
droidbot1337 said:
well, i thought i was the only one interested in this topic. welcome aboard! now that google has gone jackless we should be getting more great adapters and headsets. its a great time!!
Click to expand...
Click to collapse
There were a few out there already:
Zorloo Z:ero and Aero.
The Z:ero needs a micro to USB-C adapter of the correct type. This one: https://smile.amazon.com/gp/product/B018G6IK7E/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
so it seems that the pixel adapter price has been slashed in half! now lets wait and hope for a black version!
tech_head said:
I used the one that came with the Essential PH-1.
I have also used USB-C earbuds with a DAC in the cable.
No issues.
Click to expand...
Click to collapse
Hi!
Which exact moderl of usb-c earbuds with integrateg DAC are yuo using? I have read some people having issues with some DACs on the g6 precisely due to usb-c error, such as battery draining
What about sound quality between that amp&dac dongles and original headphone jack (not quad dac) ? Should google dongle have better audio performance than G6 headphone jack?