Product parameters:
Bluetooth version: V5.0+EDR (BES230)
Support protocol: HFP/HSP/A2DP/AVRCP
Communication distance: about 15-20 meters (under barrier-free environment)
Earphone working time: about 3-4 hours
Headphone standby time: about 100 hours
Headphone charging time: about 2 hours
Headphone battery type: polymer lithium ion battery
Headphone battery capacity: 3.7V 50mAh
Charging compartment battery capacity: 3.7V 500mAh
Charging time of charging compartment: about 2-3 hours
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