T53
1. Bluetooth chip: JL6983D4
2. Bluetooth version: 5.2V
3. Bluetooth protocol: HFP, HSP, A2DP, AVRCP
4. Transmission distance: 10m-100m
5. Battery capacity (charging case)280MAH
6. Battery capacity (single earphone) 30MAH
7. Standby time:≈80h Music playtime: ≈ 4h, Talk time: ≈4H
8. Charging time for case: <1h
9, Speaker: F13 in real copper ring package adhesive
2. Bluetooth version: 5.2V
3. Bluetooth protocol: HFP, HSP, A2DP, AVRCP
4. Transmission distance: 10m-100m
5. Battery capacity (charging case)280MAH
6. Battery capacity (single earphone) 30MAH
7. Standby time:≈80h Music playtime: ≈ 4h, Talk time: ≈4H
8. Charging time for case: <1h
9, Speaker: F13 in real copper ring package adhesive
