Product Name: Two Way Radio Earpiece, 2-Pin Covert Acoustic Tube, Earpiece Noise Canceling Transparent Security Headset for Kenwood Kmc-25, Kmc-26, Tk-208, Tk-220, Tk-250 Model NO.:   EE-10T2 Jack Type: Plug-in Jack Diameter: 3.5mm Function: Noise-Cancelling Usage: Mobile Phone Type: Electret Earphone Color: Black Material: PU Brand: for Walkie Talkie Colour: Black User: Security, Policeman Warranty: 10 Months Model No.: Ee-10t2-Beige Trademark: WG Transport Package: 1PCS/Plastic Bag, 50PCS/Polg Bag Specification: Security Acoustic Tube Earpiece Origin: China HS Code: 8518300000 Product Description Security Acoustic Tube Earpiece for Two Way RadioWGTON Model No.:EE-10T2-BeigeFeatures:1. Low profile ear tube and provides outstanding receive audio2. High volume of voice due to the sensitive stripper3. Robust steel frame4. AllhaveKevlarreinforcedcableassembliesandovermoldedstrainassembliesandovermoldedstrianreliefSpecification SpeakerDimension15mmSound Pressure Level105dB ± 3dBImpedance32Ω ± 15%Voice Frequency100mW MicrophoneFrequency30-16000HzSensitivity-55dB ± 2dBImpedance2.2KΩStorage temperature:+25ºC +/-5ºCWorking temperature:+5ºC to +50ºC/+30ºCto +60ºC