View this product description in Norwegian.

Ideal for drummers, keyboard players or anyone requiring hands-free operation
    Comfortable, unobtrusive headband design with side-of-mouth pickup
    Belt-mounted power module operates on battery or phantom power
    Cardioid polar pattern improves isolation of desired sound source
    cable terminated with locking 4-pin connector for A-T UniPak™ body-pack wireless transmitters.
    Element: Fixed-charge back plate, permanently polarized condenser
    Polar Pattern: Cardioid
    Frequency Response: 40-15,000 Hz
    Low Frequency Roll Off: 80 Hz, 18 dB/octave
    Open Circuit Sensitivity: PHANTOM: -55 dB (1.7 mV) re 1V at 1 Pa BATTERY: -56 dB (1.5 mV) re 1V at 1 Pa
    Impedance: PHANTOM: 200 ohms BATTERY: 270 ohms
    Maximum Input Sound Level: PHANTOM: 146 dB SPL, 1 kHz at 1% T.H.D. BATTERY: 132 dB SPL, 1 kHz at 1% T.H.D.
    Dynamic Range: PHANTOM: 111 dB, 1 kHz at Max SPL BATTERY: 97 dB, 1 kHz at Max SPL
    Signal to Noise Ratio: 59 dB, 1 kHz at 1 Pa
    Phantom Power Requiremens: 11-52V DC, 2 mA typical
    Battery Type: 1.5V AA/UM3
    Battery Current Life: 0.4 mA / 1200 hours typical (alkaline)
    Switch: Off, on-flat, on-roll-off
    Cable: 55&qout; (1.4 m) long (permanently attached to microphone), 0.10&qout; (2.6 mm) diameter, 2-conductor shielded cable with TA3F-type connector
    Accessories: AT8531 power module AT8128 windscreen AT8125 windscreen battery