ML139 Open-Ear Sports OWS Earphone

Plan JL6973
Bluetooth version 5.3
Audio agreement HFP、HSP、A2DP、AVRCP、SPP、PBAP、TWS+
Bluetoothdistance 10M
Earphone music time 6-7hours
Standby time 20hours
Charging port TYPE-C
Battery box charging time 2hours
Earphone battery capacity
3.7V/40mAh
Battery box capacity
3.7V/300mAh
Spearker size Ф13mm