Features: 3.5mm standard plug, plug and play. 3m length cable long distance transmission. New revamped design gives you better quality sound during transmission. Microphone can be picked up from the clip for the best sound effect. Adopting electret condenser cartridge with high sensitivity , low impedance , anti-noise and ant jamming capability. Microphone can be glued with sticker to the wall, glass, car, door, etc. With fast and accurate data transmission, guarantee the voice clearly and stably under kinds driving occasions. Highly improved the speech quality of hand free car kit communication system. Specifications: Frequency response: 50Hz - 20KHz Impedance: 2.2K Ω Mic size: Ø 9.7X6.7mm Sensitivity: - 32dB ± 3dB (0dB=1V/uPa) Directionality: omnidirectional Channel: 2-pole mono/3-pole stereo/4-pole pin/SM head Wire length: 3m Type: 3.5mm elbow - 2-pole mono, 3.5mm elbow - 3-pole stereo, 3.5mm straight head - 2-pole mono, 3.5mm straight head - 3-pole stereo (optional) Package Includes: 1 x Car Stereo/Mono Microhone note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!