IR-300M
紅外線無線麥克風
IR-300M
IR-300M 是一款免持紅外線無線麥克風。它消除了乾擾或竊聽問題，允許在相鄰的會議室或學校教室同時使用。由於紅外線無線麥克風系統所使用的頻段與TS-800和TS-900系列紅外線會議系統互不干擾，因此兩個系統可以同時安裝在同一位置。
- 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
電池
IR-200BT-2 rechargeable battery for the infrared wireless microphone (option)
or AA alkaline dry cell battery (2 pieces).
or AA alkaline dry cell battery (2 pieces).
消耗電流
Typ. 250 mA (2.4 V, Power selector switch: N)
Typ. 340 mA (2.4 V, Power selector switch: H)
Typ. 340 mA (2.4 V, Power selector switch: H)
音聲頻率
32.768 kHz
調變敏感度
±4.8 kHz (1 kHz, when SPL of 84 dB is input)
麥克風組成
Unidirectional electret condenser microphone
最大輸入音壓
120 dB SPL
Input Sensitivity Adjustment
Adjustment range: -9 dB to 0 dB (factory preset: 0 dB)
音聲頻率響應
100 Hz - 12 kHz
預加重
300 μs
輸入
External microphone input (Φ3.5 monaural mini jack)
電池使用壽命
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)
microphone is used, Power selector switch: N)
Approx. 6 h (when the alkaline battery is used, Power selector switch: N)
工作溫度
0 ℃ to +40 ℃ (32 ℉ to 104 ℉)
工作濕度
30 % to 85 %RH
外觀
Control section: ABS resin, metallic gray, paint, 50% gloss
Filter section: Polycarbonate, optical cut filter
Filter section: Polycarbonate, optical cut filter
尺寸
64 (W) x 91.3 (H) x27.3 (D) mm (2.52" x 3.59" x 1.07")
重量
130 g (0.29 lb) (with battery and strap)
附屬品
Screw driver (for setting) …1, Color label (6 colors) …1
Battery charger: IR-200BC
Ni-MH battery: IR-200BT-2 (containing 2 pieces)
Battery charger: IR-200BC
Ni-MH battery: IR-200BT-2 (containing 2 pieces)
請下載資料以獲取完整規格。
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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