Secure Fit sizing fins (3 sizes). Powered by #10 Batteries (4 included).The Silencer electronic ear buds provide all day comfort and customization with patented Sure-Lock system. Delivering crystal clear digital hearing enhancement, the Silencer also protects hearing utilizing Walker's SAC - Sound Activated Compression technology. Form meets function, all in a compact in-the-ear design. Protect It or Lose It. SAC (Sound Activated Compression) protects hearing. On / Off power switch. Full Dynamic Range Speakers deliver crisp clear sound. Up to 80 Hours battery life. Matte black with Carbon Fiber accents. The item "Walker's Game Ear In-Ear Razor Silencer Electronic Earbud Set GWP-SLCR" is in sale since Tuesday, March 13, 2018. This item is in the category "Sporting Goods\Hunting\Range & Shooting Accessories\Hearing Protection". The seller is "round100" and is located in USA , . This item can be shipped worldwide.