Walker's Razor Slim Electronic Muff, Black Razor" ultra-thin rubberized cups Two Omni directional microphones Provides sound activated protection over 89 dB at 0.02 reaction time Noise reduction rating of 23dB. Operates on 2 'AAA' batteries- Included Product Information Brand: Walker's Game Ear Model: GWP-RSEM UPC: 888151013021 Color: Black Warranty: Manufacturer Warranty Used from $37.83 (5