1. 4.1 bluetooth protocol, 10m effective transmission distance.
2. Support hands-free, TF card / AUX / Micro USB playing music.
3. Built-in 400mAh battery, listening time can be up to 4 hours.
4. 3W power loudspeaker, the sound is clear, bright and loud, without distortion.
5. Built-in LED light, it would change color in turn when playing music.