1. Bluetooth specification: V5.3 2. Wireless transmission range: 10m 3. Audio signal-to-noise ratio: about 80db 4. Battery capacity: 1200mAh 5. Built-in voltage: 3.7V 6. Playing time: about 3h 7. Speaker power: 5Wx1 8. Bluetooth connection, automatic shutdown when no connection 9. Incoming calls can be answered with one button, support FM radio/TF card and U disk direct reading/audio input 10. Type-C charging, support TWS couplets
