Califone PA319 Presentation Pro Wireless Set with Microphone Amplifier unit only in Great working Condition Califone PresentationPro provides educators with high-quality audio support, whether for vocal reinforcement or connecting to mobile devices, LCD projectors, netbooks, notebooks, laptop & desktop computers for enhanced audio learning. This way the entire class can hear the video or any other digital resource being used. The PresentationPro is powerful enough so a single speaker can be used in each classroom, minimizing installation time and costs. It can be used in classrooms, labs, cafeterias, auditoriums, meeting rooms, hotel & conference rooms, and even outdoor events. Includes the Califone Q319 handheld Wireless Microphone which eliminates the need for dedicated microphones to any given speaker and allows for mix-and match uses, extends budgets, and provides system-wide flexibility. Recessed wiring resists wear and tear Designed with comfortable lightweight ear cushions Offers an exceptional resource for creating music or giving presentations