These Bluetooth enabled Razor Xtreme muffs use active dynamic sound suppression and omni-directional mics to block out the noise you don’t want and let in the sound you do want. A lightning fast reaction time and wind noise reduction prevent unwanted obtrusive noise while on the range or at the workplace. The inclusion of Bluetooth and a physical audio input jack, allows these electronic muffs to be connected to compatible devices wirelessly or wired, including phones and walkie talkies. The cool mesh headband and comfort gel pads provide a comfortable and secure hold during physical activity. Includes a battery saving auto shut off that powers down the muffs after 4 hours.