Electronic earmuff

7. Powered by 4 AA batteries (not included).
8. Ideal in shooting, hunting, industrial training and many other applications.
9. Receiving voice at frequency: 400 to 4, 000Hz making voice clearer
10. Certificate: CE, RoHS
11. SNR: 19dB

5. There is a jack which can connect like walkie-talkie,MP3,Radio and etc.
6. Soft, wide and foam ear cushions and individually headband provide an even and consistent distribution of pressure around the ears for the best.

1. Protect your hearing from harmful noises, but also allow you to hear normal conversation.
2. Weak sounds can even be amplisfied, so you hear them better than you would without electronic ear muffs. 3. Immediately attenuated the noises above 85 dB.
4. On/Off switch with volume control on both cups.

Electronic earmuff: 400 to 4, 000Hz making voice clearer
Certificate: CE, RoHS
SNR: 19dB