MyMyk SMARTMYK overview
 
The SmartMyk Directional Microphone for DSLR & Video Cameras from MyMyk is a battery operated hypercardioid, electret condenser microphone for capturing audio. It can be used for applications such as home videos, internet broadcasting, interviews, and more.
The mic is made from a durable polycarbon ABS material and features an integrated shockmount that's made from a synthetic TPE material, which is weather-resistant and also supports use in extreme cold conditions. 
Furthermore, the SmartMyk also features a detachable foam windshield and a flexible coiled connection cable with a 1/8" gold stereo mini-jack plug. The mic is powered by a 3V CR 2032 button-cell battery (not included), which supports over 200 hours of continuous use. It's also equipped with a stainless steel shoe mount.
 
 
MyMyk SMARTMYK specs
 
Analog Performance :
Sound Field Mono 
Operating Principle Line Gradient 
Transducer Electret Condenser 
Polar Pattern Hypercardioid 
Frequency Range 60 Hz to 20 kHz 
Maximum SPL 120 dB SPL 
 
General :
Output Connectors 1 x 1/8" (3.5 mm) TRS 
Cable Length 5.9" / 150 mm 
Battery Type 1 x 3 V Button 
Weight 2.12 oz / 60 g 
 
Packaging Info :
Package Weight 0.35 lb 
Box Dimensions (LxWxH) 9.3 x 4.3 x 2.3"