1. Digital intercom communication earmuffs have a built-in dual-mode digital wireless intercom module.This product is suitable for noisy environments such as petroleum and petrochemical fields, mining fields, industrial and mining maintenance, and mining maintenance, and shipbuilding factories

2. Noise reduction level: NRR:27dB SNR:32dB

3. Battery:  Built-in battery

4. Charging time:  <4h

5. Charging interface: Type-C

6. Frequency range: 400MHZ~470MHZ

7. Channel number: 16 channels

8. Transmission power:>500mW

9. Receiving sensitivity:<-124dBm

10. Communication range Open area: >1500m

11. Working temperature: -10℃~+45℃

12. Application scenarios： Mining maintenance Drilling platform Airline support