SILICONE EAR MUFFS – The ear muffs are made of silicone instead of regular sponge. As a result, these airsoft ear muffs have higher elasticity and tightness, making your ears more comfortable. MICROPHONE: The microphone type is condenser, which provides clearer communication in noisy environments. CHIP PROTECTION – The upgraded chip of this headset is protected by film, which is more resistant to mold, dust and moisture. Headset adopts electronic active noise reduction and sound acquisition technology, the sound is more clear and natural, protect your ears. Headset plug: military standard 7.0 mm plug. The plug cord is made of kraft paper cord and TEP cover. Stretchable, strong, anti-freezing, anti-hardening and anti-aging. New TPE headband is detachable. It allows you to easily switch between he. Adphones and helmet-mounted headphones during use. And you don’t have to break the headband to do it. And it is easy to operate. Note: This product does not contain batteries.