WIRELESS PERFORMANCE: This UHF stereo wireless in ear monitor system operates in UHF, free of interference by utilizing UHF wide audio signal transmission (Up to 89 systems can operate simultaneously). The wireless system enables users to move freely on the stage and in the studio with operating distance from 140 - 160 ft. in open space, line of sight. *For longer distance, please avoid thick walls, glass, and metal block | HIGH-END QUALITY AND DESIGN: Elegant sleek design, metal construction for transmitter base unit, black carrying case for safe-keeping. LCD panel provides system details including channel, group number, stereo mode selection, lock feature, and RF indicator. Simple setup with uninterrupted frequency to optimize sound performance for this wireless IEM system. Good quality earbuds provide purer sound and enhanced performance for studio and stage monitor | STEREO FUNCTION FOR PROFESSIONAL USE: This quality stereo IEM system can works perfectly in various sound-monitoring events, both small and large venues, ideal for on stage performance, studio recording, exhibit, lecture, instruction, speech, etc. The package also includes metal racks that facilitate more professional use. Users can select stereo mode for both the transmitter and receiver to enjoy stereo performance of the system | BOX CONTENTS: 1 x UHF wireless IEM transmitter, 6 x Bodypack receivers, 3 x In-ear earbuds (Please purchase extra earbuds if not enough.), 1 x Power adapter, 1 x User Manual. BONUS: 1 x Antenna, 1 x Extension Cord, 2 x Metal Racks, 6 x AA batteries (Please purchase extra batteries if not enough.) | DEVOTED SERVICE: Genuine Phenyx Pro audio products come with 12-month manufacturer assurance and supportive customer service. Welcome for troubleshooting or replacement of discontinuous/defective parts