Features:
1. Works with most bluetooth devices such as smartphones, tablets or other bluetooth devices
2. Built-in 800mAh rechargeable lithium battery
3. Support TF card (excluding TF card)
4. Built-in microphone, support hands-free calling
5. Volume +/- Control
6. Previous/Next control
7. With AUX input function, it can be used with non-Bluetooth devices
8. ABS panel + aluminum frosted frame, shockproof and anti-collision
9. Small size, easy to carry