Bluetooth 5.0 Mono Wireless Business Headset Customer Service Dedicated Headset(Black)

Features:
1. Adopt 4 times anti-noise technology
2. Support Headset Profile, Handfree Profile
3. With redial the last call number, refuse to answer, adjustable volume and other functions
4. Adopt Bluetooth 5.0 technology, the connection is simpler and faster, the sound quality is clear, and anti-interference
5. Realize online chat through Bluetooth wireless transmitter
6. Head-mounted headset design, more convenient to use, better call effect

Product parameters:
1. Material: ABS
2. Bluetooth version: 5.0
3. Transmission range: 10 meters
4. Function: noise reduction, ultra-long battery life, call function, support music
5. Frequency: 2402MHz-2480MHz
6. Microphone sensitivity: -45dB (0dB=1V/Pa, ??1KHz)
7. Working voltage: 3.3-4.2V
8. Charging voltage: 5V
9. Charging current: 80mA
10. Single or double ear: single-sided hands-free
11. Battery capacity: 180mAh lithium battery
12. Talk time: about 13 hours
13. Standby time: about 220 hours
14. Charging time: less than 2 hours
15. Waterproof performance: IPX4