It adopts soft PVC cushioned earmuffs and headband back-hung design to provide maximum comfort and enhance the sound cancellation effect. Fully adjustable rotating headband. Waterproof ABS PE material, long-lasting performance and easy to clean. Rear-hanging design: wearing helmet equipment, easy to wear and use rear-mounted earphones, comfortable to wear, easy to disassemble, can be used in any environment, and waterproof. Metal bracket: The tension of the bracket can firmly fix the earmuffs, and it can be fixed with the neck auxiliary in the case of strenuous exercise. (The contact part between the stent and the neck is covered with rubber to prevent skin damage). Multiple noise reduction: The product uses two layers of high-density soundproof cotton and two layers of new shock-absorbing structure, plus a layer of leather wrapping. Let you enjoy an absolutely quiet environment. IPSC noise-reducing earphones: effectively reduce the environmental noise, the noise reduction effect of the environmental noise above 80 decibels is significant, and the hearing is effectively protected. Used in the field of tactics, construction sites, factory processing, study work, etc.