1. Earmuffs are equipped with Bluetooth connection function, which can be connected to mobile phones, digital Intercoms and other equipment for multi-media playing and communication. They are suitable for noisy environments such as airports and construction sites.

2. Noise reduction level: SNR:28dB

3. Battery: Built-in battery

4. Charging time:  >3h

5. Bluetooth version： Bluetooth 5.0

6. Bluetooth communication distance： >10m

7. Working time： >120h

8. Adjustable headband length： 30mm

9. Operating temperature： -10℃~+40℃

10.Application scenarios： Logging and cutting, DlY