YYK-520 Rotatable Single Ear Business Bluetooth Headset with Charging Box and Digital Display Support Call and Redial Last Call

1. Bluetooth version: V5.0 + EDR
2. Wireless frequency: 2.4GHz
3. Support protocol: A2DP1.3 / HFP1.6 / HSP1.2 / AVRCP1.6 / D11.3
4. Transmission distance: 10m
5. Headphone battery capacity: 50 mAh
6. Headphone charging voltage/current: 5V/1A
7. Play/talk time: about 4 hours
8. Charging time: about 1 hour.
9. Standby time: 120 hours
10. Speaker impedance: 8mm diameter 32 ohms
11. Microphone sensitivity: -42dB
12. Working temperature: -10-50 degrees Celsius
13. Charging compartment input voltage / current: 5V / 1A
14. Charging compartment battery capacity: 400 mAh
15. Weight: 74.5g

Packing list:
Cargo compartment x 1
Charging cable x 1
Handbook x 1
Headphones x 1
Ear cap x 2