[Bluetooth AUX Receiver for Car] Bluetooth 3,5 mm AUX receiver can convert your old car sound system/home sound system/3.5 mm cable headphones/speakers into wireless. It is compatible with most Bluetooth devices such as smartphones, tablets, laptops and computers. .[ Hands search and enjoy wireless music] This Bluetooth AUX receiver can match with Bluetooth devices and can be used to answer internal microphone hands calls. A single button to answer, reject, terminate it, and search for the last number again. Designed with MFB and Sound Opening/Part button, it is very suitable to adjust the sound of the music. .[ Bluetooth 5.0 and double connection] Bluetooth receiver is equipped with Bluetooth 5.3 to provide stable connection. It can be connected to 2 devices at the same time, so you don't miss any calls while listening to music. Bluetooth range up to 33 FT without obstacles. It automatically connects to the last connected device. .[ A single key to open fast charging and long battery life] and enter the matching mode. The built -in battery has a long battery life and can support the use of up to 16 hours after full charge. Fast charge and can be completely charged within 2 hours. .[ portable and convenient] Only 0.5 oz weight, very small size. You can take this Bluetooth sound receiver with you at any time. He's a very good friend for drivers. If you encounter any problems during use, please feel to let us know, we will always help you.