?Double Pairing?Pair two Bluetooth devices at a time; Enjoy music or answer the phone freely. After successful connection, the device will automatically connect to the last connected mobile phone. (But before the device is turned on, please make sure that the Bluetooth function of the mobile phone is turned on). ?Easy To Use?Insert a non-Bluetooth device through AUX to turn on Bluetooth. Connect the device to the home amplifier/car stereo/stereo headset via a 3.5mm audio cable or metal connector. ?Handsfree Call? The receiver supports wireless music and handsfree call. It can pair 2 devices at the same time. When driving, you can easily plug in your car, and you can answer the phone. The built-in microphone makes it easy to keep in touch with your friends. ?Ultra-portable & Fashionable?The detachable design is easy to use. Wired headsets can be changed into wireless headsets, and the old fashion stereo can be changed into Bluetooth stereo with Bluetooth 5.0 music receiver. It is easy to carry when traveling. ?Wireless Bluetooth 5.0? Made of CSR QCC3003 chipset, with low-power high-speed stable signal transmission. 3.5 mm AUX receiver model. This is your car, speaker, Hi-Fi or expansion station, Bluetooth V5.0, HSP, HFP, A2DP, AVRCP, multi-pair, hands-free call, on-board Bluetooth, wireless music. 10-meter long-distance transmission can realize 0-10-meter long-distance transmission.