Amazon.com: Elmo 1307 Model CRA-1 Wireless Pen Tablet, Wireless Interactive Capability, Compatible with Elmo Document Cameras, 16 Hours of Continuous Operation Time, Range up to 49.2 Feet, Auto Power Off : Office Products
How To Set Up Your Elmo Document camera (LX-1, TT-12iD, TT-12i, TX-1) - YouTube