Built-in directional microphones amplify range commands and other ambient sounds to a safe 82 dB, providing more natural listening and enhanced communication. Adjustable headband for secure fit; compact folding design for convenient storage. It offers the ultimate in safety and ear protection. The safety is delivered through distortion-free amplification (up to a safe 82 dB) of important low level sounds like range commands and conversation. The protection comes from instant blocking of any noise above 82 dB. An external audio jack lets the earmuff do double duty as stereo headphones when connected to an MP3 player or other audio source. The Y-wire kit can be directly connected to the walkie-talkie through the KENWOOD plug for communication. There is a microphone on the Y line, which can be used for communication. There is also a mobile phone plug linked to the headset, which can be directly inserted into the jack on the headset. The Y-line kit is also equipped with a U94 PTT KENWOOD plug ptt and magic stickers Note: This product does not include walkie-talkies Package 1 x Headset 1 x Connection cord 1 x Y wire kit