The BL-WH100 and the wireless version WH100 are premium cardioid condenser instrument microphones that clamp onto the bell of wind instruments or onto the rim of percussion instruments. The integrated gooseneck and ratcheting swivel joint allows the mic to be easily positioned and secured, and an isolation shock-mount reduces the transmission of instrument 'key noise' and other mechanical noise. Specification Type: Condenser Polar pattern: Cardioid Sensitivity: - 45db±3dB Frequency response: 20-20 KHZ Output impedance: ≤680 KΩ Working voltage: Phantom 48V or DC 1.5V- 10V Signal-to-noise ratio: 78dB Package includes: 1 x gooseneck instrument mic with 3.5 mm (1/8 in) TRS 1 x windscreen 1 x zippered carrying bag