GL20 Digital Single-ear Rotating Universal Bluetooth Earphone(Black White)

1. Bluetooth version: 5.32. Transmission distance: about 10m3. Battery capacity: 200mAh4. Charging port: Type-C/USB-C5. Use time: about 30h6. Standby time: about 300h7. Charging time: about 20min8. Impedance: 32ohm9. Frequency: 20Hz-20KHz10. Sensitivity: 85dB/mW11. Waterproof rating: IPX 512. Weight: about 14g13. Size: approx. 7.5 x 4.5 x 1cmFeatures:1. Caller voice announcement, the headset can clearly identify the calling party number, the call is more convenient to connect, safer driving2. Built-in dual noise reduction system, intelligent noise filtering, reduce interference when talking, so that communication is clearer3. Hanging ear design, comfortable to wear, firm and not easy to fall4. Semi-ear low wear, better sound transmission, more clearly hear the sound of the surrounding environment, making driving safer5. LED LCD digital display, easy to understand the power usage6. Tight design, effective prevention of rain and sweat erosion, using easy-to-clean material7. Bluetooth 5.3 chip, stable