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IR-310M

IR-310M Infrared Wireless Microphone

IR-310M Y

The IR-310M is a lightweight, hands-free infrared wireless microphone. It is designed for use in the school classroom, eliminating problems with interference and eavesdropping, allowing simultaneous use in adjacent classrooms. It is capable of operating on one of two selectable IR frequencies and two transmitters can work simultaneously. It is also capable of operation with one rechargeable AA Ni-MH battery IR-210BT-2 for up to 8 hours of continuous operation.

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Specifications:

Battery One piece of IR-210BT-2 rechargeable battery for the infrared wireless microphone (option)
Current Consumption Typ. 215 mA (1.2 V)
Infrared Emitter
Wavelength 870 nm (AM: Brightness modulation)
Modulation Method Frequency modulation
Carrier Frequency

Channel A: 3.100 MHz
Channel B: 3.350 MHz
Transmission Distance Approx. 15 m (50 ft) (in an unobstructed space)
  
Tone Signal 32.768 kHz
Modulation Sensitivity ±4.8 kHz (1 kHz, when SPL of 84 dB is input)
Microphone Element Electret condenser microphone, Uni-directional
Maximum Input Sound Pressure 120 dB SPL
Input Sensitivity Adjustment Adjustment range: 2 levels (high, low)
Frequency Response 100 Hz - 12 kHz
Preemphasis 300 µs
Input External microphone input (⌀3.5 monoaural mini jack, phantom powered)
Switch Power Switch, Channel selector switch, Microphone sensitivity selector switch, Function button
Indicator Power LED (combined with battery life indicator)
Battery Operation Time Approx. 8 hours (when used with one piece of IR-210BT-2 rechargeable battery)
Operating Temperature 0°C to +40°C (32°F to 104°F)
Operating Humidity 90% RH or less (no condensation)
Finish Control section: ABS resin, white
Filter section: Polycarbonate, optical cut filter
Dimensions 54.2 (W) x 109 (H) x 27 (D) mm (2.13" x 4.29" x 1.06")
Weight 95 g (0.21 lb) (with battery and strap)
Accessory Neck strap...1
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