TOA Infrared Wireless Microphone - IR-200M Y 4QD00
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Literature

The IR-200M Y 4QD00 is a handheld infrared wireless microphone. It eliminates problems with interference or eavesdropping, allowing simultaneous use in adjacent conference rooms or school classrooms. Since infrared wireless microphone system uses a frequency band that does not interfere with that of the TS-800 and TS-900 series infrared conference system, both systems can be simultaneously installed in the same location.Possible to use with either Channel A / B / 1 / 2.

Specifications
BatteryIR-200BT rechargeable battery for the infrared wireless microphone (2 pieces), or AA alkaline dry cell battery (2 pieces).
Current ConsumptionTyp. 250 mA (2.4 V, Power selector switch: N), Typ. 340 mA (2.4 V, Power selector switch: H)
Wavelength870 nm (AM: Brightness modulation)
Modulation MethodFrequency modulation
Carrier Frequency

Channel A: 3.100 MHz, Channel B: 3.350 MHz

Channel 1:4.100 MHz, Channel 2: 4.725 MHz

Transmission DistanceApprox. 20 m (65 ft) (Power selector switch: H, in an unobstructed space), Approx. 15 m (50 ft) (Power selector switch: N, in an unobstructed space)
Tone Signal32.768 kHz
Modulation Sensitivity±4.8 kHz (1 kHz, when SPL of 84 dB is input)
Maximum Input Sound Pressure120 dB SPL
Microphone UnitUnidirectional electret condenser microphone
Frequency Response100 Hz - 12 kHz
Preemphasis300 μs
Battery Operation TimeApprox. 8 h (when the IR-200BT rechargeable battery for the infrared wireless, microphone is used, Power selector switch: N), Approx. 6 h (when the alkaline battery is used, Power selector switch: N)
Operating Temperature0 ℃ to +40 ℃ (32 ゜F to 104 ゜F)
Operating Humidity30 % to 85 %RH
FinishControl section: ABS resin, metallic gray, paint, 50% gloss, Filter section: Polycarbonate, optical cut filter
Dimensionsφ37 × 241.8 (H) mm (φ1.46" × 9.52")
Weight170 g or 0.37 lb (with alkaline batteries), 185 g or 0.41 lb (with dedicated rechargeable batteries)

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