IR-310M
The IR-310M is a lightweight, hands-free infrared wireless microphone. Designed for use in school classrooms, it eliminates problems with interference and eavesdropping, allowing for simultaneous use in adjacent classrooms. It can operate in one selectable IR frequency, with two transmitters working simultaneously together. It is also capable of operating with one piece of rechargeable AA Ni-MH battery IR-200BT-2, up to 8 hours.
| Battery | One piece of IR-200BT-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 |
| Microphone Element | Electret condenser microphone |
| Maximum Input Sound Pressure | 120 dB SPL |
| Input Sensitivity Adjustment | Adjustment range: 2 levels (High |
| Frequency Response | 100 Hz - 12 kHz |
| Preemphasis | 300 μs |
| Input | External microphone input (%%1293.5 monaural mini jack |
| Switch | Power Switch Function button |
| Indicator | Power LED (Combined with battery life indicator) |
| Battery Operation Time | Approx. 8 hours (when used with one piece of IR-200BT-2 rechargeable battery) |
| Operating Temperature | 0 ℃ to +40 ℃ (32 ゜F to 104 ゜F) |
| Operating Humidity | 90 %RH or less (no condensation) |
| Finish | Control section: ABS resin Filter section: Polycarbonate |
| Dimensions | 54.2 (W) × 109 (H) × 27 (D) mm (2.13 × 4.29" × 1.06) |
| Weight | 95 g (0.21 lb) (with battery and strap) |
| Accessory | Neck strap …1 |
