2 Pin Covert Acoustic Tube Microphone Headset for Walkie Talkie Radio - Invisible Earpiece for Security, Surveillance & Discreet Communication

MATTRESS Function: For Mobile Phone,Common HeadphoneSupport APP: NoFrequency Response Range: 30-16000HzIs wireless: NoSupport -x: No: AUX Noise-Cancellation: YesSupport Memory Card: NoWireless Type: NoneVolume Control: NoWaterproof: NoCommunication: WiredModel Number: Covert Acoustic Tube EarphoneSensitivity: 102+/-3dBWith Microphone: YesControl Button: YesResistance: 9 ohmStyle: Ear HookVocalism Principle: ElectrostaticPlug Type: Line Typecommunication: wiredfunction: Security Earpiece Headset/for mobile phoneplug type: wiredCondition: and high qualityImpedance: 2.2K ohmsSensitivity: 102 dB, +/-3dBResponse: 20-16000HZ.Transparent flexible acoustic tube microphone inside PTT switch earbud fits snugly to earColour: blackMaterial: ABSsize: 10*5*2CMMicrophone Size: 6.0 X 5.0mmSpeaker DIA: 22MMLine Length: 1.2mPackage Contents:1* 2 Pin Security Earpiece HeadsetOnly the above package content, other are not included.Note: Light and different displays may cause the color of the item in the a little different from the real . The measurement allowed error is +/- 1-3cm.