Protect your hearing - the earmuffs are designed with ultra-low profile and equipped with ultra-thin earmuffs to ensure the wearing stability; These earmuffs can prevent harmful noise, and at the same time, you can clearly hear what is happening around youSound amplification - Earmuffs use two high-gain microphones to amplify safe sound, providing clear and omnidirectional hearing; Enhance low-end frequency to produce accurate and natural sound Rugged design - These sleeves are of rugged design with rubber coating to help prevent damage to internal electronic equipment; The shell is made of soundproof composite material; The headband is a metal wire frame with padding Easy-to-use controls - these earmuffs have a slightly depressed volume control knob on the outside - to achieve a perfect balance between providing easy-to-use controls and preventing accidental volume adjustment; The battery door also opens from the outside Listen to music - these earmuffs also have an audio input jack, which allows you to plug in your mobile phone or other favorite audio sources, and effectively convert these earmuffs into a set of headphones with hearing protection function