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RockvilIe RWM3300UA Dual HandHeld Microphones For Church Sound Systems

...onstruction, Low power consumption for longer battery life, Ultra signal stability minimizes audio artifacts.
OSA technology: Locates, prioritizes, and selects the clearest frequency for the best sound quality, The display on the mic and the receiver show the battery life, Operating Range: 200´-260´(indoor), 160´-220´(outdoor), Channel: 200 Channel selection, Frequency Range: 500MHz-599MHz, Frequency Stability: ±0.005%.
, Frequency Response: 40Hz-15KHz(±3 dB), Dynamic Range: 110dB, S/N: 90dB, T.H.D: < 0.1%(1KHz), Audio Output Jack: (Ch1/Ch2) XLR balanced + 1/4" mixed, Power Voltage: AC110V-240V 50/60Hz, Operating Temperature: 14°F-122°F, Mic Battery Operating Time: up to 8 hours.

Rockville rwm4401uh UHF wireless (4) handheld microphone system with LCD display.
High performance wireless hand held microphone system. Includes rwm4401uh transmitter with (4) hand Held, high sensitivity, unidirectional, wireless cardioid microphones. Professional rack mount design with LCD displays. Color coded microphones. Rack mountable rugged metal housing mic receiver. Comfortable ergonomic composite microphone construction. Low power consumption for longer battery life.
Featuring a dual filter design to limit feedback and interference. Individual microphone volume Control. Color coded microphones. Comfortable ergonomic composite microphone construction. Low power consumption for longer battery life. Ultra signal stability minimizes audio artifacts. Operating range: 300´ – 400´(indoor), 250´ – 350´(outdoor). channel: four channel. Frequency range: 467-490.
Frequency stability: 0.005%. Modulation Mode: UHF. Frequency response: 50hz-15khz(3 dB). dynamic range: 110dB. S/N: 90dB. T.H.D: < 0.1%(1Khz). audio output jack: XLR balance & 1/4" Unbalanced. Power voltage: ac110v-240v 50/60Hz. Operating temperature: 14°f-122°f. Mic battery Operating Time: up to 10 hours.

Original HP toner cartridges produce an average of 71% more usable pages than non-HP cartridges..
HP 48A toner cartridge yield (approx.): 1,000 pages. Operating temperature range- 59 to 90.5°F. Storage temperature range- -4 to 104°F. Operating humidity range- 20 to 80% RH. Storage humidity- 0 to 95% RH.
48A toner is designed to work with your HP printer for high quality, reliable results every print..
What’s in the box: 1 New Original HP 48A (CF248A) toner cartridge.
HP 48A (CF248A) toner cartridges work with: HP LaserJet Pro M15w, MFP M28w..

Four 1/4” outputs and three balanced XLR outputs.
Four channels with six operating frequencies per channel across a 173MHz–198MHz frequency range.

UHF frequency range with 6 selectable channels（561-568MHZ）.
One transmitter can be operated with multiple receivers within the operating range.
Complex anti-interference circuit for using 6 sets at the same time without mutual.
For recording studio and on stage monitoring.

Low self-discharge rate (less than 1% per year at 25ºC).
Applications:motion sensors ,smoke alarms,alarm system,range finders,timer switch,flashlight,light meters,laser sights,shock collar,tactical light,security system,camera..

Accurate RF Measurement: AD8317 detector logarithmic amplifier provides accurate RF measurement. The measurement accuracy is better than ±1 dB in a dynamic range greater than 50 dB, and a power controller with adjustable power amplifier or variable gain amplifier is provided at the output..
Wide Operating Frequency Range: The wide operating frequency range from 1M HZ to 10G Hz supports all cellular standards, broadband wireless standards and private dedicated systems in frequency bands..
Shielding Case: With shielding case and antireverse protection diode in the 3V to 5V power supply voltage range..
Sturdy & Durable: 1.6mm thick PCB double panel, sturdy and durable, long service life, large heat dissipation area, stable operation, long running time, easy to use, good performance, small size, easy to carry and store..
Working Temperature: AD8317 provides better accuracy, temperature stability, and 5 ns fast output response in the temperature range of 40 ℃ to + 85 ℃, and is used for RF burst detection at 125 MHz..

The ’HC21 logic gates utilize silicon gate CMOS technology to achieve operating speeds similar to LSTTL gates with the low power consumption of standard CMOS integrated circuits.
Buffered Inputs, Balanced Propagation Delay and Transition Times, Significant Power Reduction Compared to LSTTL Logic ICs.
Typical Propagation Delay: 9ns at VCC = 5V, CL = 15pF, TA = 25°C, 2V to 6V Operation.
Fanout (Over Temperature Range) Standard Outputs . . . . . . . . 10 LSTTL Loads Bus Driver Outputs . . . . . . 15 LSTTL Loads.
Wide Operating Temperature Range . . . -55°C to 125°C, High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V.