IR-300M

Infrared Wireless Microphone

IR-300M

The IR-300M is a hands-free 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.

Ready-to-wear design with neck strap
Intelligent positioning of the emitter avoids drop-outs through user‘s handling
Built-in electret condenser microphone
Infrared light emission intensity adjustable
2 selectable channels
Antibacterial treatment
Low-battery indicator
Connection of optional external microphone possible
An external MIC input level adjustable

Specifications Equipment A&E Specs Downloads

Battery

Rechargeable battery for the infrared wireless microphone (option) or AA alkaline dry cell battery (2 pieces).

Current Consumption

Typ. 250 mA (2.4 V, Power selector switch: N)
Typ. 340 mA (2.4 V, Power selector switch: H)

Infrared Emitter

Wavelength

850 nm (AM: Brightness modulation)

Modulation Method

Frequency modulation

Carrier Frequency

Channel A: 3.100 MHz
Channel B: 3.350 MHz

Transmission Distance

Approx. 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 Signal

32.768 kHz

Modulation Sensitivity

±4.8 kHz (1 kHz, when SPL of 84 dB is input)

Microphone Element

Unidirectional electret condenser microphone

Maximum Input Sound Pressure Level

120 dB SPL

Input Sensitivity Adjustment

Adjustment range: -9 dB to 0 dB (factory preset: 0 dB)

Audio Frequency Response

100 Hz - 12 kHz

Pre-emphasis

300 μs

Input

External microphone input (Φ3.5 monaural mini jack)

Battery Life

Approx. 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 Temperature

0 °C to +40 °C (32 °F to 104 °F)

Operating Humidity

30 % to 85 %RH (no condensation)

Finish

Control section: ABS resin, metallic gray, paint, 50% gloss
Filter section: Polycarbonate, optical cut filter

Dimensions

64 (W) x 91.3 (H) x27.3 (D) mm (2.52" x 3.59" x 1.07")

Weight

130 g (0.29 lb) (with battery and strap)

Included Accessories

Screw driver (for setting) x 1, Color label (6 colors) x 1

Optional Accessories

Battery charger: IR-200BC
Ni-MH battery: IR-210BT-2 (containing 2 pieces)

Do not use battery together with rechargeable or dry batteries of different product numbers.
Failure to follow this instruction may result in battery leakage or excessive heat generation.

Please download Datasheet to access full specifications.

Optional Accessory

IR-210BT-2

The pendent-style transmitter model shall be housed in an ABS plastic case measuring 2.5” (W) x 3.6” (H) x 1.1” (D) & weighing .3lbs (incl. batteries & strap). It shall include an integrated omni-directional microphone and also an input for use with an external lapel or headset mic via a 3.5mm mini-jack. There shall be an array of multiple IR LEDs at the front of the housing to facilitate clear transmission. There shall be an internal switch for selecting sensitivity for use with different external microphones. The unit shall have a frequency response of 100Hz to 12kHz and can accept a maximum Sound Pressure Level of 120dB. The unit shall be treated with an anti-bacterial coating to help reduce the likelihood of transmitting common bacterial agents from user to user. An integrated nylon lanyard allows the pendent to be comfortably worn around the user’s neck.
The unit shall be called the TOA IR-300M.

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IR-300M