Control presentations from anywhere in the classroom with Califone's Wireless Tablet Interface. The left-side buttons and touch screen let you use the tablet as a wireless mouse from up to 50 feet away. Software functions make it easy to draw on an interactive whiteboard, magnify images and resize the viewing window. The tablet also features 18 channels for using multiple tablets in the same room without interference. Includes a touch pen, two rechargeable AAA batteries, USB receiver and three-foot USB cord.