1[High Quality Material] High strength U94 PTT, can be pressed continuously for 30,000 to 50,000 times, cold resistant PU tensile wire, high flexibility and toughness. 2[Powerful Speakers] Two way radio microphones, imported 3215% at 1kHz speaker, 1083dB at 1kHz 1mW sound pressure level, 2W maximum power, strong and thick sound. 3[Portable] This U94 PTT comes with a clip, which can be hung on your clothes or belt, it is very portable, the button activates the PTT (Push to Talk) device, plug and play. 4[Compatible Model] 7.1mm/0.28in shoulder microphone with PTT, suitable for Motorola GP338 GP328 GP340 GP380 and other walkie talkies, good compatibility. 5[Ergonomic Design] Professional walkie talkie speaker shoulder microphone, fine workman, ergonomic design, compact and easy to use, comfortable to touch.Item Type: Handheld Microphone Material: PU + PTT Color: Black Speaker Specifications: Sound Pressure Level: 1083dB at 1kHz 1mW Rated Power: 50mW Maximum Power: 2W Speaker Impedance: 3215% at 1kHz Microphone Specifications Sensitivity: -315dB at 1kHz 0dB=1V/0.316G Output Impedance: 120015% at 1kHz Application: Suitable for MOTOROLA GP338 GP-328 GP-340 GP-380 and other walkie talkies 1 x U94 PTT 1 xHandheld Microphone