Polar pattern:unidirectional

Frequency response:20HZ-16KHZ

Semsitivity:38db + 2db ( 0db = lv / Pa at 1KHZ )

Output impedance :150ohm + 30 % ( at 1KHZ )

Load impedance :greater than equal 1000ohm

Equivalent noise level:16dBA

Maximum sound pressure level :132db ( at 1KHZ less than 1 % T H D )

Signal noise ratio:78db

colour:Black

Material:Metal+aluminum alloy+ABS