Technical Specification of the SHM-81A High quality Professional Microphone

Capsule Type: Condenser
Frequency Response: 100Hz – 20kHz
Sound Pick-up Distance: 3m
Nominal Impedance (Long Distance): 1k Ohm
Load Impedance (Short Distance) : 2.3k Ohm
Sensitivity Normal :  45dB
Sensitivity Tele :  38dB
Polar Pattern: Unidirectional(Normal) / Ultra Unidirectional(Tele)
Power Supply: DC1.5V  AA Battery / 48V Phantom Power
Battery – Working Time : 26 Hours usage
Weight: 130g
Dimension (mm): Diameter 21, Length 360
Output/Indicator: Balance