Especially the smaller size (the smallest capsule diameter of just 3.0mm)and lightest weight are ideal for application requiring minimum  visibility. Such as dance and sports instructors;Great for video use , this mini microphone is practically invisible.

SPECIFICATION
Element：                  Back Electret Condenser           
Polar Pattern：                 Uni-Direcyional
Frequency Response：            　50Hz-20KHz
Sensitivity：               -44±3dB　          
Output Impedance：           2kΩ±30%   
Max.Iuput SPL:            130dB
Power Supply:             1.5-9V DC          
Cable:              Ø2mm*1.2M                     
Dimension:               Ø6mm
Color:             Skin or Black           
Accessories:               Windscreen ,Clip