Audience Size: up to 1,500. Room Size: up to 15,000 sq. ft. A professional portable public address system with built-in wireless in a compact lightweight black carpeted cabinet. Use the Voice Projector in training rooms, conference rooms, classrooms, or boardrooms to provide rich room filling sound. The Wireless Voice Projector is a complete sound system that contains a powerful 50 watt multimedia stereo amplifier with built-in receiver and 3 mic inputs plus two built-in Jensen designed 6" x 8" oval speakers. With built-in tripod mount it is designed for placement on a tripod, media cart, or permanent mounting. The Wireless Voice Projector can dramatically enhance presentations and communication with mixed media sound line-in for CD tape player or computer projector. It includes both headset and lapel mic and transmitter plus audio cables for laptop & projector. Power with 10 D-cell alkaline batteries (not included) for up to 200 hours. International AC Adapter/recharger; or Rechargeable Nicad Battery Pack also available. 13-1/2"W x 5"D x 10"H overall.