Hearing Coverage. Fashion R2000. Options distinctive push-in on/off transfer for safe positioning. Two recessed microphones supply total reliability and stereo sound. Loud sounds, like gunfire, above 84dB are compressed, even as standard conversation is in reality enhanced. Adjustable CoolMax headscarf moves moisture away even as offering cool convenience. Unbiased quantity keep watch over for each and every ear lets you alter and set a at ease hearing degree. Wind clear out and extended battery usage as much as 300 hours. External battery housing lets you modification batteries briefly and simply while essential. Uses 4 AAA batteries (included). Grasp packaged.