Bluetooth 5.0-The latest Bluetooth 5.0 technology ensures a faster data transmission rate and more stable connection. The transmission distance reaches up to 33 feet (10 meters). You can enjoy pleasant music environment when driving. Long Battery Life-It takes 2 hours to be fully charged. This Aux Bluetooth 5.0 adapter can support 6 hours of continuous use to play music when fully charged and the standby time is 60 days. You can also use it while charging. In addition, the small and portable size of the bluetooth aux adapter is very convenient to use in the car or carry it with you. Lossless Hi-Fi Sound-The Bluetooth 5.0 transmitter receiver adopts CVC noise cancellation technology to remove noise and make sound quality clearer. It supports A2DP,AVRCP,HFP,HSP audio format. Easy to Operate-Just connect the Bluetooth receiver to the AUX port of other devices, and you can answer a call or listen to music by Bluetooth connection. Designed with RX/TX switch, you can switch transmit/receive mode. Besides, it is carefully designed for your answer/hang up/reject a call/play or pause music via the multifunctional button. It is also convenient to adjust the volume and switch songs. Wide Compatibility-This Aux Bluetooth 5.0 adapter can convert non-Bluetooth device to Bluetooth-equipped system for wireless connection. It is compaticable with car audio system, home stereo, speaker, and headset.