1、This wireless receiver transmitter is very sturdy, which has 4 hours battery life, lossless sound quality, hands free call. And it can plug and play, with auxiliary interface. 2、Connect the 3.5mm audio interface of the TV to wirelessly stream the sound to the earphones, so you don't have to worry about disturbing your family when you watch movies at night. 3、This product is practical, can be connected to the car audio, not only can make calls, but also can listen to dynamic music, so that your journey will no longer be lonely. 4、CD level lossless sound quality: high resolution lossless sound quality restoration, bringing only a CD level music experience, you can listen to music on your mobile phone. 5、This wireless receiver has a built‑in rechargeable lithium battery, which can be charged once, and can be used for 4 hours in low battery, which is convenient and worry free.