Wireless bluetooth headset

Bluetooth version: Bluetooth V 5.0
Audio decoding: SBC
Effective distance: 10m
Working hours: about 6h (earphone) +24 hours (charging box)
Charging time: about 1.5h.
Rated input: DC 5V 50mAh (headphone)
DC 5V 1200mAh (charging box)
Frequency response range: 20Hz-20KHz
Sensitivity: 98dB