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VHF Wireless System

IR-300M:

Infrared Wireless Microphone (Hands-Free)

Infrared Wireless Microphone (Hands-Free)
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Easy-to-wear, neck-suspended design means unit can be ready for use quickly. Lightweight body can be worn for long periods of time without causing fatigue (130g with 2 alkaline batteries).

  • Infrared light emission intensity adjustable at 2 levels.
  • 2 selectable channel frequencies
  • Antibacterial treatment
  • Employs an electret condenser microphone unit.
  • Low-battery indicator.
  • Can be used with a built-in microphone or external microphone.
  • An external MIC input level adjustment function allows sensitivity adjustment if the connected external microphone has a different sensitivity.
  • 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
Input Sensitivity Adjustment Adjustment range:-9dB to 0dB (factory-preset:0dB)
Microphone Unit Unidirectional electret condenser microphone
Frequency Response 100Hz-12kHz
Input External microphone input (3.5 monaural mini jack)
Battery Operation Time Approx.8 hours (when the IR-200BT-2 rechargeable batteries for thr infrared wireless microphone is used; Power selector switch:N) Approx.6 hours (when the alkaline battery is used;Power selector switch:N)
Operating Temperature 0C to +40C
Operating Humidity 30% to 85% RH
Finish Control Section:ABS resin,metallic grey,50% gloss,paint/Filter Section:Polycarbonate,optical cut filter
Dimension 64(W) x 91.3(H) x 27.3(D)mm
Weight 130g (with batteries and strap)
Accessories Screw driver (for setting)x 1, Colour label (6 colours) x 1
INFRARED WIRELESS MICROPHONE SYSTEM COOK BOOK

All you need to know regarding the IR infrared system from TOA