HEIMU Series Lavalier microphone is Ideal for movable singing and dancing, sport instructor, record, speech,
live, guider etc. 
Wide and flat frequency. Perfect direction restriction of the 180 angle noise.Small size is suitable for invisible
application requirement. 
Small and cute appearance with metal clip is easy to clip on the tie, lapel or cloth Convenient to operation, can
match any body-pack wireless transmitter or power supply adaptor (power supplied 1.5-10V D.C)  

SE: SENNHEISER type 3.5mm stereo plug
SH:SHURE type 4pin mini XLR(4p)or other
AK: AKG type 3pin mini XLR(3p)or other
AT: Iron triangle mini 4P IN plug
ST: Special thread type 3.5 single plug

Element:..............................Back Electret Condenser
Polar Pattern:.....................Uni-directional  
Frequency Response:........50Hz- 16KHz 
Sensitivity:..........................-42dB± 3dB 
Output Impedance:...........1KΩ± 30%(at 1kHZ) 
Max.Input SPL:...................135dB 
Dimension:..........................Φ15mm 
Accessories:.........................Windscreen