1. Bluetooth version: 5.0 2. Frequency: 2.402GHz-2.480GHz 3. BT distance: 10m~20m (depending on the environment around the equipment such as obstacles) 4. Microphone transmission distance: about 1m 5. Lithium ion battery: 3.7V/180mA 6. Play time: about 8 hours 7. Charging voltage: 5V 8. Charging time: about 2 hours 9. Standby time: about 160 hours
