Sound:
Total resistance: 32 ohms
Speaker diameter: 40 mm
Sensitivity: 90dB (1kHz)
Frequency range: 20 – 20,000 Hz
Maximum input power: < 50 mW
Speaker type: Dynamic

Connectivity:
Bluetooth version: 5.0
Codec supported: SBC
Maximum reach: Up to 10 m
Bluetooth profiles: A2DP, AVRCP, HFP
Wireless transmission type: Bluetooth
Wireless: Yes
Detachable cord: Yes
Headphone jack: 3.5 mm

Power supply:
Music playback time: 29 hours.
Talk time: 21 h
Battery type (headset)
Lithium polymer (built-in)
Battery capacity (headset): 400 mAh
Battery life in standby mode: 166 h
Charging time: 2 hours.
Quick charge time: 15 minutes charge for 4 hours of operation