Operating in the 915 to 927.2 MHz frequency band, the VocoPro Digital-Quad-H4 is a four-channel UHF wireless handheld microphone system offering versatility and easy setup for up to four subjects, making it ideal for vocalists, karaoke artists, announcers, and DJs. It includes a Hybrid-Quad receiver and four wireless handheld dynamic mics, as well as a rackmount kit, the required power adapter, and a 1/4" cable.Incorporating 24-bit digital UHF technology and dual removable antennas, the receiver is designed to deliver clear and consistent signal. It features four channels, each with adjustable volume, AF and RF indicators, and a balanced XLR output. The wireless microphones utilize individual mic IDs to eliminate crosstalk, and are powered via AA batteries (available separately). A dedicated LED on each mic indicates power and battery status.