The IR-310M is a lightweight, hands-free infrared wireless microphone. It is designed for use in the school classrooms and eliminates problems with interface or 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 piece of rechargeable AA Ni-MH battery IR-200BT-2 for continuous operation up to 8 hours. 

  • Usable as hands-free or hand-held microphone
  • Lightweight body with unobtrusive styling
  • 8-hour operation with single AA battery
  • Microphone sensitivity adjustable to suit application
  • Sturdy clothing clip to prevent wobbling or rotation during hands-free use

  • Specifications
  • Equipment
  • Tender text
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Specifications for product:
IR-310M IR-300M
Operating humidity

90%RH or less (no condensation)


30% - 85%RH


Operating temperature

0 °C to +40 °C (32 °F to 104 °F)

0 °C to +40 °C (32 °F to 104 °F)


ABS resin, white

ABS resin, grey metallic


54 x 109 x 27 mm (W x H x D)

64 x 91.3 x 27.3 mm (W x H x D)


95 g

130 g

Accessory (included)


Screw driver (for setting), Color label (6 colors)

Tender text