Bluetooth version: 5.3
Bluetooth transmission distance: approximately 10 meters
Sensitivity: 98 ± 3dB
Frequency response range: 20Hz-20kHz
Horn specification: 10mm
Earphone battery: 35mAh * 2
Charging box battery: 300mAh
Charging voltage: 5V/0.5A
Charging time: 1 hour (for headphones)
Charging time: 2 hours (charging box)
Playback time: 50% volume, approximately 8 hours
Talk time: approximately 6 hours
