Features 1、PU Coiled Plug Connection Design: The straightened length can reach 2.5 meters, suitable for different heights, and the sealed sponge earmuffs can be replaced. The ear rods can be adjusted in different lengths to suit different personnel. 2、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 with high flexibility and toughness. 3、Portable: U94 PTT has a clip, which can be hung on clothes or belts. Push the button to activate the PTT (Push to Talk) device. Communicating with others is safer, more convenient, sturdy and durable, and easy to use. 4、Applicable Groups: Specially designed for large noise places such as airports, racing cars, docks, mining, etc. It is suitable for workers who communicate with machines in special places such as racing cars, docks, and high altitude operations. 5、Scope of Application: The PTT button is located at the bottom of the earmuffs, and the red button is lightly touched to initiate a call. Suitable for Motorola XIR P8268 P8668 DP4400 DP4800. Specification Item Type: Earphone Material: PU+ABS Colour: Black Application: Suitable for Motorola XIR P8268 P8668 DP4400 DP4800 Microphone Specifications Sensitivity: -44±3dB at 1KHz Rated Impedance: 680Ω Product Frequency: 20Hz-160Hz Working Voltage: 1.5V-4.5V Directional Function: Single Direction, Noise Cancellation Speaker Specifications Speaker Size (mm): φ36mm/1.4in Rated Input Power: 0.5W Maximum Output Power: 1W Sensitivity: 100±3dB Speaker Impedance: 8Ω Wire Specifications Durable Temperature: 60℃-30℃ Package List 1 x U94 PTT 1 x Heavy Duty Noise Canceling Headphones