MP3 Wireless In-Car Bluetooth USB Charger with Wireless Bluetooth earphone Features: Separate design, machine use Exclusive to your space. The headset can be detached separately. It can be used both inside and outside the car. Comfortable wear without pain Ergonomic in-ear design. Close the ear canal to create a more comfortable wearing experience. 3.1A smart quick charging. Supports playing music of U disk while charging. Intelligent automatic telephone hang up When calling, pick up the headset and automatically. At the end of the call, put the earphone back on the base and hang up automatically. Pick up the headset and automatically. Put the headphones down and the stereo will play. ke bluetooth hands- Easy button, you can hands- call. Bluetooth connection, intelligent Compatible with mainstream apps: music, navigation, etc. Intelligent detection Intelligent detection and judgment accuracy. Built-in intelligent voltage detection chip. Detection of car battery voltage. Play the music in the. Built-in MP3, WMA decoding chip. Full upgrade, better sound quality. Power supply by lighter The lighter base is power supplied. Put back the headset to charge. The headset is equipped with a charging port Equipped with charging port. When leaving the car, charging plug can also be used for charging. Package: 1xCar player FM transmitter 1xEnglish & Chinese user manual 1xPackage box