Titan-Water Resistant Speaker Microphone for Motorola 2 Pin Radios CP200 CP185 P110 Type: Accessories (Microphone) Waterproof: Yes Specifications: Microphone size:72*45*17 mm (include clip) Earphone Unit Diameter:36 mm Out Level:85 dB/0.5 Watt. 0.5 Meter, 2M3 Sound Box Test Input Power:0.5 W Max Input Power:1 W Output Impedance:8 ohm;16 ohm for MOTOROLA Microphone Unit Type of Element :Non-directional Electric condenser Sensitivity:-38dB (1V/ 1Pa) Output Impedance:2K ohm Labor: 18 Month Warranty