Ponskoy Portable Microphone 3.5mm-Mini-Jack Microphone

The car stereo microphone is applicated for Bench/Laptop/Counter Intercom/Car GPS/Car DVD/Car Stereo, etc. Please note if you buy this microphone for in-dash car DVD Player, need to have 3.5MM Audio Jack Microphone can be glued to the wall/glass/car door and so on. Frequency response: 50Hz-20KHz Impedance: 2.2K Ohm Sensitivity (high sensitivity):-20dB±2dB (0dB=1uPa) Plug: 3.5mm Cable length: Approx 3M (9.8 ft) Mic Head Size: (Length*Wide*high) 4.2 X 2.5 X 1.7 cm (1.65 x 0.98 x 0.66 in)