Feature:1. Clear Sound: High quality walkie talkie headset with microphone can provide you with clear sound and ensure the quality of your calls.2. Compatible: 2 pin plug walkie talkie earpiece, standard size design, good compatibility, suitable for Kenwood, for Baofeng TK head.3. Easy To Use: This earphone is designed with a retractable coiled cord and is equipped with a sensitive PTT button for flexible use.4. Back Clip Design: The rotatable back clip design can be clipped on your collar or waistband, firmly fixed, light weight and easy to carry.5. Widely Applicable: Professional 2 way radio headphone, widely used in military and other places where fast and convenient communication is required.Specification:Item Type: Walkie Talkie EarpieceMaterial: PVCColor: Black Applicable: Suitable for Kenwood, for Baofeng TK Head Walkie TalkiePlug: 2pin for Kenwood, for BaofengMicrophone:Ambient Noise: 36dB (Maximum)Reference Working Voltage: 3V DCCurrent Consumption: 0.5mA (Maximum)Operating Voltage Range: 1 ~ 10V DCImpedance: 2.2 ohms (Maximum)Sensitivity: 60dB + 2dBSpeaker:Speaker Impedance: 150 +15% OhmSpeaker Sensitivity: 130dBSpeaker Frequency Range: 20-20kHzSpeaker Effective Test Range Frequency: 30-5000HzSpeaker Distortion Rate: Less Than 5%Speaker Power Rating: 10mWSpeaker Maximum Power: 15mWAbnormal Sound of Speaker: 0.5V (50Hz-5kHz), No Abnormal Sound.Package List:1 x Walkie Talkie Earpiece