ML138 Heavy Bass TWS Earphone

Bluetooth version    5.3

Audio agreement  HFP、HSP、A2DP、AVRCP、SPP、PBAP、TWS+

Bluetoothdistance    10M

Earphone music time     4-5hours

Standby time    12hours

Charging port    TYPE-C

Battery box charging time   2hours

Earphone battery capacity

Built-in lithium battery 3.7V/25mAh

Battery box capacity

Built-in lithium battery 3.7V/250mAh

Color    Black/Beige