Product Name: Noise Cancelling Ground Support Aviation Headset with Big Ptt Model NO.: PNR-50WS Jack Type: Plug-in Jack Diameter: 5pin XLR Cable/3.55mm Aux Jack Function: Noise-Cancelling Usage: Aviation, Mobile Phone Communication: Wired Type: Electret Earphone Color: Black Wire Material: PU Material: PU Industry: Airport Support Colour: Black User: Airport Staff Warranty: 12 Months Model No.: Pnr-50ws Trademark: WG Transport Package: 1PCS/Plastic Bag, 50PCS/Polg Bag Specification: Plastic Origin: China HS Code: 8518300000 Product Description Ground Support Headset with Flexible Boom Microphone for Airport StaffWGTON Model No.:PNR-50WDescription Noise cancelling boom microphoneHigh quality large round PTT button with 360 degree metal clipEar cup with acoustic noise reduction material and comfortable gel ear padsBehind the head metal hand with overhead strap, ideal for use with hard hatsOptional red PTT, mini XLR quick disconnected jack availableWith 5pin XLR cable,3.55mm AUX jack is optionaSpecification SpeakerDimension15mmSound Pressure Level105dB ± 3dBImpedance32Ω ± 15%Voice Frequency100mW MicrophoneFrequency30-16000HzSensitivity-55dB ± 2dBImpedance2.2KΩStorage temperature:+25ºC +/-5ºCWorking temperature:+5ºC to +50ºC/+30ºCto +60ºC