L-21 9D Sound Effects Bluetooth 5.0 Touch Wireless Bluetooth Earphone with Charging Box, Support HD Call (Pink)

Product parameters: 1. Bluetooth version: V5.0 + EDR 2. Support protocol: A2DP1.3 / HFP1.6 / HDP1.2 / ACRCP1.6 / D11.3 3. Operating range: about 10m 4. Battery capacity of charging box: 350mAh 5. Call / music duration: about 4H 6. Standby time: about 120H 7. Charging time: about 1H 8. The number of times the charging box charges the headset: about 20 times