Ideal entry-level system — All the advantages and freedom of wireless operation without cumbersome cords: Includes a wireless microphone and a receiver – Great system for karaoke, live performance, singing with friends | Operates on a single channel in the high-band VHF range (170-216 MHz) for reliable, interference-free performance, and excellent high-fidelity audio. 250+ ft. typical operating range — up to 300+ ft. line-of-sight | Included HT-Duo wireless microphone provides easy operation with On/Standby/Off switch and low-battery LED indicator which flashes once for “Unit On” and lights steady for low-battery alert. Standby position allows easy muting with the transmitter on | Features the Nady DM-20D unidirectional neodymium dynamic cartridge for optimum true sound, maximum feedback rejection and minimal handling noise, providing up to 15 hours of wireless operation on a single 9V alkaline battery | DKW-3 receiver with power ON/OFF switch, ¼” audio output jack, and front panel volume control. Advanced audio processing circuitry for a wide dynamic range - no overloading for loud inputs or background hiss during quiet use.