IrDA-9000 --Products link-- <UHF models> QR-4000U UDR-1000/2000 IrDA-9000 SDR-8200 SDR-7200 SDR-5000 SDR-2816SC/1816SC AIR-812/813 R-612/613 <VHF models> SDR-1216/2216 AIR-212 R-303/304 R-1001/2001   2-way Sinc. True Diversity Wireless Microphone System       >>Handheld Transmitter Receiver Handheld Beltpack   SQ-9000 handheld transmitter   • Multi-function LCD display for channel/frequency, sensitivity, battery level indicator, Alkaline/NiMH battery selection. • Patented IrDA technology for 2-way data transfer between transmitter and receiver. • Rotatable protective cap hides the function keys for fool-proof operation. • Power-On LED • Hidden antenna • Detachable microphone capsule design. Selection of either Dynamic or Condenser. • Handling noise free with condenser microphone capsule • Rubberized coating. • Multi-color cap for channel identification. • Uses 2 pieces of AA batteries to operate • Long operating hour up to 12 hours   SQ-9000 Specifications Model SQ-9000 Frequency Range UHF High Band 600 - 900 MHz Switching Bandwidth 25 MHz Switchable Frequency 100 2-way synchronization Yes RF Power Output < 35mW** Spurious Emission > 60 dB below carrier Dynamic Range > 110 dB Display Screen LCD T.H.D < 0.5% Battery Type AA × 2 Operating Life about 12 hours (Alkaline) Charging Function YES Peak Deviation ±40KHz Antenna Built-in Microphone Capsule Dynamic/ Condenser type Dimension (mm) φ46*240 Weight (g) 200 Remark: The above specifications are subject to change without prior notice. **Output power varies from country to country.