Huarui Electronics Noise Cancelling Ear Muffs? Electronics Sound Amplification Shooting Ear Protection, Ear Muffs for Shooting and Hunting (Blue)

Color: Black Features:   - The shooting electronics ear muffs offers the ultimate safety and ear protection for shooting , hunting.  - The safety ear muff blocking of any noise above 82dB.  - The shooting ear protection designed for range or in the field use, with a low profile earcups that no interference when aiming.  - Two Independent On/Off Volume Control Knobs works separately, the volume can be adjusted separately.   - Two Omni-directional microphones.   Points for Usage: -Please remove batteries when you don't use earmuff for long time to increase battery life -Check cushions for damage regularly. Once the cushions became hard or damaged please replace it immediately. -Make sure to get as little hair as possible between the ear cushion and the head. Powered by AAA batteries (Not Include), two batteries on each side .  Material: ABS  Package Weight: 345g /12.17oz  PackageSize:14.8*10*13.3cm/5.82*3.93*5.23inch  Package List:1 * Ear Muffs