Pro Ears Gold II 26 Ear Muffs Green. The proprietary DLSC compression technology is what makes these Protective Ear Muffs by Pro Ears a premium option for indoor or outdoor range use. With these Pro-Ears Gold II Noise Reduction Headphones you don't have to worry about getting uncomfortable. The specially designed gel ear seals allow for extra comfort and extended wear in both hot and cold conditions. Plus with the Pro-Ears Gold II Shooting Range Headphones you get an auto shut off feature military grade circuit boards a low battery indicator and separate volume controls for fine-tuning each individual ear piece. What's even more impressive is that these headphones can amplify sounds up to 8x with high fidelity along with their 1.5 millisecond response time making these a secure option to protect your invaluable hearing. To power these headphones you'll need only 4 AAA batteries (not included). Specifications for Pro Ears Gold II 26 Ear Muffs: Manufacturer: Pro Ears NRR: 26 dB Condition: New Features of Pro-Ears Gold II 26: Five Year Warranty Noise reduction rating (NRR) is 26 Automatic shut-off (in case you accidentally leave them turned on) Military grade circuit boards with gold connectors Proprietary DLSC technology for clean natural uninterrupted sound quality Low battery indicator Gel ear seals for all day all weather comfort High fidelity sound while protecting your hearing with and 5x amplification. 8 bit microprocessors runs a system diagnostic when you turn on the unit Separate adjustable gain control on each cup to fine-tune to your hearing 1.5 millisecond response time Package Contents: Pro-Ears Gold II 26 Pro Ears PEG2SMG: Gold II 26 Ear Muffs Green