Designed for stable voice transmission, thanks to two infrared emitters carefully located on a microphone body shape that helps prevent the emitters from being accidentally covered by a hand when holding the microphone.
- Lightweight body keeps hands from tiring even during long hours of use (170 g with 2 alkaline batteries).
- Infrared light emission intensity is adjustable at 2 levels.
- Two selectable channel frequencies.•Antibacterial treatment.
- Employs an electret condenser microphone unit.
- Low-battery indicator.
- Color stickers supplied to distinguish one unit from other wireless microphones.
Specifications Battery IR-200BT-2 rechargeable batteries for the infrared wireless microphone (2 pieces) or AA alkaline dry cell batteries Current Consumption typ.250mA (2.4V, Power selector switch:N)/typ.340mA (2.4V,Power selector switch:H) Infrared Emitter Wavelength 870nm (AM:Brightness modulation) Modulation Method Frequency modulation) Carrier Frequency Channel A:3.100 MHz/Channel B: 3.350 MHz Transmission Distance Approx.20m (Power selector switch: H;In an unobstructed space.)/Approx. 15m (Power selector switch:N;In an unobstructed space.) Tone Signal 32.768kHz Modulation Sensitivity ±4.8 kHz (1 kHz,when SPL of 84 dB is input) Maximum Input Sound Pressure 120dB SPL Microphone Unit Unidirectional electret condenser microphone Frequency Response 100Hz-12kHz Battery Operation Time Approx.8 hours (when the IR-200BT-2 rechargeable batteries for the infrared wireless microphone is used; Power selector switch:N) Approx.6 hours (when the alkaline battery is used;Power selector switch:N) Operating Temperature 0ºC to +40ºC Operating Humidity 30% to 85% RH Finish Control Section:ABS resin,metallic grey,50% gloss,paint/Filter Section:Polycarbonate,optical cut filter Dimension ø37 x 241.8mm Weight 170g (with batteries) Accessories Screw driver (for setting)x 1, Colour label (6 colours) x 1