The Nady UHF-4 systems offer unprecedented value in a full-featured single-channel UHF wireless mic system -- with interference-free operation in any application or locale on select UHF frequencies from 794 to 865 Mhz.
Features
Half-rack receiver design with folding front panel dual antennas and unique snap-out panel locking tabs for single receiver or dual receiver (side-by-side)optional rack mounting
Nady's proprietary companding circuitry for an industry best 120dB dynamic range, and the clearest, most natural sound available
Tone Squelch for locking out potential interference
UHF-4 receiver with DigiTRU diversity for maximum range and dropout protection, full LED indicators, both 1/4 in. unbalanced and XLR balanced outputs, and special circuitry for noiseless transmitter on/off switching
Includes 1/4 in. cable
UB-4 Bodypack Transmitter
Choice of instrument or headworn/lavalier microphone bodypack transmitter in a single unit -- off/standby/on switch allows convenient audio muting with the transmitter "on"
Status LED indicator flashes once for unit "on"; lights steady for low battery alert
Locking 3.5mm mini-jack provides secure connection for removable microphone or instrument cable
9V alkaline or NiMH battery operation
Technical Info
UHF4 Overall System Performance
Frequency Response: 30Hz - 18KHz, +/- 3 dB
Dynamic Range: 120 dB
Total Harmonic Distortion: < 0.6%
RF Carrier Frequency Range: UHF, choice of single frequencies in separate bands within 794-865 MHz
Frequency Stability: +/- 0.005%, crystal controlled
Modulation: FM (F3E), +/- 20 KHz normal
Operating Range: Up to 250 ft. typical (depending on site conditions); up to 500+ feet optimum line-of-sight
Receiver
Reception Mode: DigiTRU Diversity (Dual Antenna)
Squelch: External Control, Tone Key (30.768 KHz)
Controls: Power On/Off, Volume Control, Squelch (Mute) Adjust
Connectors: DC in, 1/4 in. unbalanced phone jack (360 mV/ no load), XLR balanced input (+/- 24 mV/ 600 Ohm load)
LED Indicators: Power On, Diversity A/B, Audio LED Bars + Peak
Unwanted Signal Rejection: 60 dB image and spurious
Power Requirements: DC 15V @ 300 mA, adapter included
Dimensions: 1.75 in. x 7.5 in. x 8.1 in.
Weight: 0.9 lbs.
Antenna: 3.5 in., dual telescopic
Transmitter
Audio Inputs: 3.5 mm locking mini-jack, switchable inputs: instrument, headworn mic, or lavalier mic
Controls: Power/Standby/Off, Instrument/Headworn Mic/Lav Mic, Input Level
LED Indicator: Single color (red), Unit On (single flash red), Low Battery Alert (steady red)
RF Power Out: 50mW nominal (maximum allowed by FCC)
Harmonic & Spurious Emissions: < -50 dB
Battery: 9V Alkaline
Battery Life: 10 Hours
Dimensions: 4.25 in x 2.5 in. x 1.0 in.
Weight: 3.1 oz. without battery
4 payments of 
Personal use items that are used at your mouth or in your ear cannot be returned once opened due to health laws. This includes all microphones, guitar talk boxes, ear plugs, and in-ear earphones. 
