ORDER MODEL: 8221T01S Receiver Model: 8221 Microphone Model: T01 FEATURE: 1. UHF 800MHz band and 16appiled channels. 2. Twice mixer superheterodyne circuit design, have very high reveive sensitivity. 3. Excellent SAW filter for RFand IF circuit, have excellent anti-jamming performance. 4. Manufactured ba SMT components and technics, each product had pass through aging test for 8 hours. 5. Collocating all-pervading AA size batteries for transmitter, continuous supply time up to 10-30 hours. 6. Uual DC-DC step up circuit for transmitter, RF output will not weaken when batteries power reduce. 7. Up to150 meters operation distance in perfect environment, fitting for high requirement situationist. SPECIFICATIONS: Frequency Range: 730~950MHz Selectable Channels: 2*16 Oscillation Mode: PLL synthesized Frequency Stability: +/_ 10ppm Receive Mode: Superheterodyne Input Sensitivity: -90dbm Audio Response: 40Hz~20KHz T. H. D. At 1KHz: ≤0.5% Signal to Noise Ratio: ≥11odB Audio Output: Balanced XLR Unbalanced 1/4 jack socket RF Output: 10mW(50mW Max. ) Modulation Mode: FM Battery Requirement: 2*1.5v AA size