"Specification
Material: ABS.
Bluetooth version and chipset: V5.4 / AB5616.
Supported protocols include A2DP, AVRCP, and HFP.
The transmission distance is up to 10 meters.
Working voltage ranges from 3.1 to 4.2V.
Impedance is 16Ω ±10%.
Speaker power is 5mW.
Earbud and charging case battery capacity is 220mAh.
Charging time is approximately 2 hours.
Talk time is approximately 14 hours.
Music playback time is approximately 20 hours.
Standby time is around 250 hours."
01030163BK