Wires had their heyday with the telegraph and telephone, but these days we avoid them as much as possible. To help with the transition Samsung introduced the Level Link – a small Bluetooth fob that can wireless audio stream to anything from headphones to cars.
The idea is pretty simple – a switch tells the Level Link if it's transmitting or receiving, then you just have to plug in the old-fashioned 3.5mm audio jack.
When acting as a receiver, it lets you stream audio from sources that lack Bluetooth functionality – your favorite corded headset or your car's stereo (plug the Link into the AUX input). The transmitter functionality has potential too – you can watch TV with headphones but without cables.
Check out the infographic Samsung has come up for some more ideas:
probably the coolest Samsung product in a long while
no read before typing, according to that you can connect it to a stereo and play the songs on your phone directly on the stereo, seems to be more a 2 way device. which seems to be pretty cool.