Feature:1. High Quality Material: U94 PTT part adopts high strength PTT, which can be pressed continuously for 30,000 to 50,000 times. The wire is made of cold resistant PU tensile wire, which has high flexibility and strong toughness.2. Standard Military Plug: Allowed to be worn under your helmet or hat. It is also very suitable for outdoor activities, such as air guns, hunting, CS, paintball, etc. U94 earphone PTT is suitable for military standard plug.3. Flexible and Comfortable: Flexible cantilever microphone, comfortable headband. High quality ventilated ear cushions can achieve peripheral hearing. 3 adjustable suspension straps provide comfortable fit and stability.4. Sturdy Practical: With a clip, it can be hung on clothes or belts. Sturdy structure, the button activates the PTT (Push to Talk) device. It can only be worn on the left ear.5. Scope of Application: This motorcycle helmet unilateral headset is suitable for Hytera PD600 PD602 PD605 PD662 PD665 PD680 PD682 PD685 X1p X1e.How to Use:Plug and playSpecification:Item Type: HeadsetMaterial: PU+PTT+ABSFrequency Response: 150Hz-500HzSensitivity: 46-60dBImpedance: 8 OhmApplication: Suitable for Hytera PD600 PD602 PD605 PD662 PD665 PD680 PD682 PD685 X1p X1e Package List:1 x U94 PTT1 x Headset1 x Nylon Belt