Great in Boardroom, Meeting Room, Auditorium for audiences up to 1,500 in rooms up to 15,000 sq. feet. Includes 50 Watt multimedia stereo amplifier with 3 mic iputs, line in for CD, Computer, line out to record; Extra speaker jacks. 2 built-in Jensen designed speakers. Hot gooseneck dynamic mic plus handheld dynamic mic with 15-ft cord. 4 casters (2 lock). Elegant, stylish high pressure laminate finish. Select Light Oak, Medium Oak, Walnut, or Mahogany. Power with optional AC Adapter (336-1143) or power up to 200 hours with 10 D-Cell alkaline batteries (not included). Rechargeable system consists of Adapter/recharger plus Nicad Battery Pack (336-1145) - All Sold Separately.