Fangrui Product Details Mini Microphone, Super Compact Shape, Easy To Carry.with Ultra-high Sensitivity The Reason Is That There Is No Sound Load On The Acoustic Membrane, Can Adopt Extremely Thin And Light Design, So Not Only Is The Frequency Response Extremely Superior, But It Also Has Good Sensitivity. The Reason Why It Can Sense Extremely Weak Sound Waves And Output The Clearest, Most Delicate And Precise Sound! Surround Radio, Clear Radio, Restores The Sound, Allowing The Audience To Sound Into The Scene Sound Card, Mobile Phone, With Headset Socket New And High Quality Sound Head: Condenser Head Sensitivity: -431db Pickup Method: Unidirectional Output Impedance: Less Than2.20 Working Voltage: 1.5v Material: Plastic+metal Colour: Black Package Contents: 1 X Portable Mini Microphone Only The Above Package Content, Other Products Are Not Included. Note: Light Reflection And Different Displays May Cause The Color Of The Item In The Picture A Little Different From The Real Thing. The Measurement Allowed Error Is +/- 1-3c