Audio-Technica Atw-701 700 Series Freeway Wireless System Please Note, We Do Not Sell B-Stock, Or Remanufactured Systems.  Professional Features At An Entry-Level Price.Audio-Technica Includes The Atw-R700 Receiver And Atw-T701 Unipak Transmitter In Their Atw-701 Freeway Wireless System. Audio-Technica'S 700 Series Freeway Wireless Systems Are Easy To Use And Feature Eight Selectable Frequency-Coordinated Channels, Diversity Operation For Increased Range/Reliability, Automatic Frequency Scanning, Tone Lock Squelch And More.Audio-Technica Atw-701 700 Series Freeway Wireless System Specifications:Overall System Operating Frequencies: Uhf Band, 542.125 Mhz To 561.250 Mhz Number Of Channels: 8 Frequency Stability: +/-0.005%, Phase Lock Loop Frequency Control Modulation Mode: Fm Maximum Deviation: +/-25 Khz Operating Range: 200' Typical Operating Temperature Range: 40° F (4° C) To 110° F (43° C) Frequency Response: 100 Hz To 12 Khzreceiver Receiving System: Antenna-Switching Diversity Image Rejection: 55 Db Minimum Signal-To-Noise Ratio: >80 Db At 10 Khz Deviation (Iec-Weighted), Maximum Deviation 25 Khz Total Harmonic Distortion: <=1% (10 Khz Deviation At 1 Khz) Sensitivity: 25 Db