Product Features:Solid multi-pin plug, durable to use.Transparent detachable acoustic tube, snug and covert. When you're enjoying the clear sound through it, it can also provide a discreet appearance.Upgraded Push-to-Talk button, easy to operate, nice feel.Hidden microphone at the end of the PTT, convenient to transmit.Rotatable metal clips near the acoustic tube and PTT, which will make your communication smoother.It is widely used by police, soldier, bodyguards, ham amateur, security team members and so on. It's also popular at building sites, restaurants, hotel, racing, hunting and the other related places or activities that requiring smooth communication.Compatible with the following radio models:MTP3100, MTP3200, MTP3250, MTP3550, MTP3500Package includes:1 x Headset