Take out the Earbuds, turn on the phone’s Bluetooth, search for "F9", and connect
Connect again:
Take out the headset, it will automatically connect
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Parameter
Bluetooth version: 5.1 Support protocol: Support HFP 1.7, HSP 1.2, A2DP 1, AVRCP 1.6, SPP 1.2 and PBAP 1.0 Talk time: about 3-4H (single use at full charge) Listening time: about 3-4H (single use at full power) Charging time: about 1H
Matters needing attention
1. Do not drop, hit, scratch, twist, beat, crush, or put the Bluetooth headset into water; 2. When using Bluetooth headsets, please keep them away from magnets, electrical appliances and speakers; 3. Try to avoid placing the Bluetooth headset in extreme temperatures (the working environment temperature range is -10°C—45°C); 4. Avoid exposing the Bluetooth headset to a humid environment;