Product function parameters:
Bluetooth version: V5.3
Battery capacity: 600mAh
Charging time: about 1.5 hours
Standby time: about 100 hours
Transmission distance: 10 meters
Horn impedance: 32 Ω ±15%
Frequency range: 20hz- -20khz
Speaker size: 40mm
Speaker sensitivity: 110dB ± 3dB
Microphone sensitivity: -42dB ± 3dB
Rated input: 5V 500mA
Audio interface: AUX
Running time: About 25 hours