1. Bluetooth scheme: 5.0
2. Frequency: 2.4GHz-2.48GHz
3. Bluetooth transmission distance ≤10 meters
4. Bluetooth reception distance ≤10 meters
5. Charging voltage: DC 5V
6. Battery capacity: 1100mAh
7. Bluetooth reception function: Connect to one mobile phone
8. Bluetooth transmitting function: connect two pairs of Bluetooth earphones or bluetooth speakers at the same time