Battery capacity: 2 batteries 1800mah*4 7200mah
Input voltage: 5V/1A
Transmission distance: 10m
Frequency response: 20HZ-20KHZ
Signal-to-noise ratio: 90dB
Working voltage: 7.4V
Distortion: 1%
Charging interface: Type-C
1. Playing time: 6-8h
2. Standby time: 90 days
3. Charging time: 6-10H (different chargers have different specifications)
Speaker size: external magnetic 74mmX2