Wireless handheld microphone system; UHF microphone design; Easy plug-and-play audio; Simple and hassle-free operation; Reliable distortion-free performance; Battery-operated for wireless mobility; Receiver features 1/4 in. jack for additional connection; Auto-search microphone adapter syncing with microphone; LCD digital display screen for frequency read-out; LED indicator lights; Power on/off switch; Single channel selectable frequency design (only 1 microphone per receiver); Ideal for home theater, parties, karaoke or stage and studio DJ recording; Connects to PA speaker systems, amplifiers, audio receivers and mixers ; Includes handheld microphone, receiver unit, USB connection cable, 2 AA batteries and 2 AAA batteries;