The AMP BT Electronic Earmuff features rubberized coating on the ear cups quad microphones and automatic shutoff after four hours. The muff is Bluetooth compatible and has a 3.5 mm Aux jack for use of MP3 and mobile devices. Two 2 AAA batteries are included. Auto ATV & RV. Camping Hiking & Survival. Gun Cleaning & Maintenance. Optics Scopes & Sights. Packs Bags & Organizers. Patio Home & Garden. Pet & Animal Care. Swords Armor & Fantasy. Tools & Home Improvement. Pyramex VGPME30BT Venture Gear Amp BT Electronic 26dB Over The Head Blk Ear Muff. Actual item may differ slightly from picture Please check listing Title/Description for fit, color and size information. View more great items. Walker’s Game Ear GWP-RSEMRH-BGY Razor Tacti-Grip Digital Battleship Grey. Walker’s Game Ear GWP-FPM1-BKO Passive Black/Orange Shooting Range Earmuffs. Caldwell 1103307 Youth E Max Pro Earmuff Neon Blue. Pyramex PVGPME30BT Black Electronic Hearing Protection 26 dB Earmuffs. This listing is currently undergoing maintenance, we apologise for any inconvenience caused.