Battery (*1) 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 870 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)
Maximum Input Sound Pressure 120 dB SPL
Microphone Unit Unidirectional electret condenser microphone
Frequency Response 100 Hz – 12 kHz
Preemphasis 300 μs
Battery Operation Time Approx. 8 h (when the 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 ℃ to +40 ℃ (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 φ37 × 241.8 (H) mm (φ1.46″ × 9.52″)
Weight 170 g (0.37 lb) (with battery)
Accessory Screw driver (for setting) …1, Color label (6 colors) …1
Option Battery charger: IR-200BC
Ni-MH Battery: IR-200BT-2 (containing 2 pieces) / IR-210BT-2 (containing 2 pieces)