Uh4 Hand-Held Mic Transmitter Features Nady Dm-10D Uni-Directional Neodymium Dynamic Cartridge For Optimum True Sound, Maximum Feedback Rejection And Minimal Handling Noise, Digitru Diversity For Optimum Range And Freedom From Dropouts, Utilizes The Uncluttered Uhf Frequencies For Interference-Free Operation In Any Application Or Locale, Both 1/4"" Unbalanced And Xlr Balanced Outputs, Tone Squelch For Locking Out Potential Interference, A/B Diversity And 5-Segment Af Level Led Displays, Volume And Mute (Squelch) Adjust Control, Special Circuitry For Noiseless Transmitter On/Off Switching, Frequency Response: 30Hz-18Khz, Half-Rack Receiver Design With Retractable Front-Panel Dual Antennas, Unique Snap Out Panel Locking Tabs For Single Or Dual Receiver Optional Rack Mounting, Transmitter Operates Using One 9V Battery, Includes Ac/Dc Adapter SKU: DBCA0255