Bluetooth Soundcard

[mister_s]

Is there such thing as a bluetooth sound card, so that I can connect any 3.5mm headphone to it and it become wireless? I don't care about the sound quality in this particular case

[ShearMe]

You can get Bluetooth transmitters and receivers for audio, but I've not seen one that is battery powered.

[dougoftheabaci]

They exist. Example:

http://smile.amazon.com/MOCREO-Bluetooth-Wireless-Streaming-Receiver/dp/B00QCO4EG4/

 

Dunno how well they work, however. Sounds like this one has about 6 hours of battery life. Your mileage will vary.

[Aphexx]

or just use your phone
https://www.rogueamoeba.com/airfoil/

for me it has 2-3 second audio delay but that doesn't phase me if I'm using it to play music or a podcast in the next room (without the screen). there may be other newer more elegant versions but this one allows me to repurpose an ancient iphone 3g to be useful once again

[creatip123]

It exists. It's called 'bluetooth audio dongle' or something like that.

 

The catch is, they don't usually built with a headphone amplifier. They're usually intended to work with active speakers. Those that got some sort of headphone amplifier, I wouldn't put much stock in its power. Get a cheap one ($10 or so) + a Fiio E6 in between. It works.

[mister_s]

Thanks for all the advice, I think I'm going to go with the Mocreo receiver, since I'm not intending this for long term use, only if I absolutely have to be mobile while hearing what's coming out of my headphones.