Detail: 
Bluetooth version: 5.3
Battery life: About 120 hours
Standby time: About 180 hours
impedance: 32Ω
Rated input: 5V
Transmission distance:About 20 meters
Speaker size: 8mm
Frequency response: 20Hz-20KHz
Charging port: TYPE-CControl method Smart touch

Noise reduction version: CVC8.