1. Bluetooth: V5.4 2. Chip: JL 3. Interface: 3.5mm 4. Battery capacity: 140mAh 5. Charging time: 2 hours 6. Working time: 7 hours in receiver mode (80% volume), about 5 hours in transmitter mode 7. Charging voltage: DC 5V 8. Transmission distance: 10m for receiver, 5m for transmitter 9. Dimensions: 96 x 21 x 12mm 10. Weight: 12g 11. Small size, does not take up space, easy to carry 12. Plug and play, simple and convenient operation
