Wireless headphone or earbud is nice, however for someone like me who already invested a lot on my old but still decent wired headphone, buying a new pair isn’t ideal. Thanks to “Jack“, this little gizmo can turn your wired headphone into a Bluetooth device. With a promising 12 hours of music playback on a single battery charge, you could virtually get through your entire day wirelessly and enjoy the audio at CD-like quality (44.1 kHz) for the crispest audio ever.
How to use? Just plug them in and you’re set. The great thing is that you can use Jack to connect any AUX enabled device to any Bluetooth enabled device. The Jack can transmit as well as receive, which means you can broadcast audio from your non-Bluetooth TV to a Bluetooth headset, or receive audio wirelessly from your phone to your car’s audio system without the dangling, inconvenient AUX.
Already sounds good? There is one more great feature of Jack – music sharing. You can pair two jacks together and share what you’re listening with a friend.
[buy here]
https://www.youtube.com/watch?v=vu7nU83v8XM