● Innovative bluetooth technology， long transmission distance up to 10 meters
● Enjoy hands-free phone calls and music in the car， making your driving or trip more elegant and safer
● Compatible with all bluetooth enabled digital devices
● Built-in high capacity rechargeable Li-battery， charging by computer or other DC 5V
● Enable directly playing MP3 files in TF / micro SD memory card and USB stick
● With FM radio function， listen to world affairs
● Support AUX external audio input
● Handing buckle design， perfect for outdoor activities， travel， etc.