● Using bluetooth 2.1 technology， long transmission distance up to 10 meters
● Built-in microphone， support hands free calls
● 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 520mAh rechargeable lithium battery， charging by computer or other DC 5V
● Conveniently charged via USB cable
● With LED indicator light， offering better visual experience
● Enable directly playing MP3 files in TF / micro SD memory card
● Support earphone output
● Ultra pocket size， perfect for travel， outdoor activities etc.