YYK-525 Simple Version Single Rotatable Earhook Noise Reduction Call Business Bluetooth Earphone without Charging Box Filter-Audio Adapter Clear static-sensitive components pollutants

Clear static-sensitive components pollutants

Alarm power: 0

Built-in battery: 11mAh lithium battery

40HQ: 14655 cartons * 500 pcs = 7327500 pcs

0 ports to your computer in seconds

YYK-525 Simple Version Single Rotatable Earhook Noise Reduction Call Business Bluetooth Earphone without Charging Box Filter-Audio Adapter Clear static-sensitive components pollutants1. 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: 50mAh 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: diameter 8mm, 32 ohms 11. Microphone sensitivity: 42dB 12. Working temperature: 10 50 degrees Celsius