Electronic hearing protection is processed by the chip,then slowly realize the noise reduction effect, making your ears more comfortable to adapt to the noise reduction process. Sound amplification function is processed by the chip and then transmitted to your ears, making it easier for you to communicate with your friends in the shooting range. The vertical design of the volume adjustment button is more ergonomic, and you can adjust the sound by slidinging the button with your middle finger. The earcup uses high-quality rubber paint, which has a better touch than other shooting muffs. And the earcup adopts slim profile and cut-outs design, which is more suitable for your shooting needs. The compact design that means it is easy & convenient to store and carry. You could put it in your range bag, tactical backpack, etc. A more comfortable headband design, and the adjustment function can meet the needs of the most consumers. We think that after wearing the same pair of ear pads for a long time, the ear pads will breed bacteria and it won’t be good for your health, so we have specially designed the replaceable ear pads. According to the advice of a health professional, it usually takes three months to replace the ear pads. It uses 2 AAA alkaline batteries(not included). New alkaline batteries provide approximately 350 hours for operation.