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 |


