ฐานไมค์ประชุมแบบไร้สาย สำหรับประธาน
หมวดหมู่ : สินค้าโปรโมชั่น ,  อุปกรณ์เสริม ,  สินค้าระบบประชุม-ระบบประชุมทางไกล ,  ไมโครโฟนชุดประชุม ,  ไมโครโฟนชุดประชุมไร้สาย , 
แบรนด์ : TOA
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TOA TS-821 Chairman Unit
The TS-821 is a Chairman unit of the Infrared Conference system. Since the system is cordless, it can be easily installed and removed. The Chairman unit features a priority speech key which allows it to take precedence over the TS-822 Delegate units when speaking. It can be operated on either the AD-0910 AC adapter or the BP-920, BP-900A lithium-ion battery. It is equipped with a remaining battery indicator. Two types of dedicated microphones are made available for the TS-821 as optional products: the TS-923, TS-903 standard type and the TS-924, TS-904 long type.
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Power Source | Supplied from optional lithium-ion battery or AC adapter |
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Current Consumption | Max. 390 mA |
Infrared Emitter / Detector | |
Wavelength | 870 nm (AM: Brightness modulation) |
Modulation Method | Frequency modulation |
Carrier Frequency | Transmission: Audio channel 1: 7.35 MHz Audio channel 2: 8.10 MHz Audio channel 3: 8.55 MHz Audio channel 4: 9.15 MHz Control channel: 6.45 MHz Reception: Audio channel: 1.95 MHz |
Covering Range | 7 m (22.97 ft) radius |
Input | Microphone terminal: XLR-4-31 type |
Output | Monitor speaker: 8 Ω, 0.2 W Headphone: φ3.5 mm mini Jack (3P:monaural) × 2 |
LED Indicator | Speech indicator, Power indicator |
Function | Monitor volume control, Headphone volume control, Priority speech function |
Battery Life | Approx. 10 hours (when the fully-charged BP-920 or BP-900A is used with "During speech" to "Standby" ratio of 1:2) |
Operating Temperature | 0 to +40 (32 ゜F to 104 ゜F) |
Operating Humidity | 90 %RH or less (no condensation) |
Finish | Case: PC resin, black Speaker Net: Steel plate, Black, matte finish, paint |
Dimensions | 205.7 (W) × 70.3 (H) × 164.2 (D) mm (8.1" × 2.77" × 6.46") |
Weight | 525 g (1.16 lb) |
Option | Microphone: TS-923, TS-903, TS-924, TS-904 (Select either one.) Lithium-ion Battery: BP-920, BP-900A AC adapter: AD-0910 |