1. Function: bluetooth audio receiving and transmitting combo, LCD screen display, support hands-free call
2. Built-in noise reduction HIFI sound quality
3. Transmission signal distance: 15m
4. Fully compatible with automatic matching
5. Built-in lithium battery: 300ma
6. Working time: about 8 hours
7. Input interface: 3.5mm
8. Input voltage: DC/5V
9. Bluetooth version: 5.0
10. Packing list: host*1; 3.5mm audio cable*1; charging cable*1; manual*1