- Description
Details
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.- Features
Features
- Easy-to-wear, neck-suspended design.
- Lightweight body.
- Adjustable infrared light emission at 2 levels.
- Two 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..
- External MIC input level adjustment function allows for sensitivity adjustment..
- Color-coded ID stickers available.
- Specification
Battery IR-200BT rechargeable battery for the IR Mic (2 pieces)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 Specifications Wavelength 870 nm (AM: Brightness modulation) Modulation Method Frequency modulation Carrier Frequency Channel A: 3.100 MHzChannel B: 3.350 MHz Transmission Distance Approx. 20 m or 65 ft and Approx. 15 m or 50 ft. Tone Signal 32.768 kHz Modulation Sensitivity ±4.8 kHz (1 kHz, when SPL of 84 dB is input) Maximum Input Sound Pressure 120 dB SPL Input Sensitivity Adjustment Adjustment range: –9 dB to 0 dB (factory-preset: 0 dB) Microphone Unit Unidirectional electret condenser microphone Frequency Response 100 Hz – 12 kHz Preemphasis 300 μs Input External microphone input (3.5 mm or 1/8" monaural mini jack) Battery Operation Time Approx. 8 hours and Approx. 6 hours Operating Temperature 0 to 40 °C (32 to 140 °F) Operating Humidity 30 to 85% RH Finish (Control Section and Filter Section) ABS resin, metallic gray, 50% gloss, paint and Polycarbonate, optical cut filter Dimensions 64 (w) x 91.3 (h) x 27.3 (d) mm (2.52" x 3.59" x 1.07") Weight 0.6 lbs - Reviews
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