Assistive Technology Loan Library item === This communication device needs to be plugged in during use. A back light with controls for intensity is provided. Consultation with the support staff from the AEA's Vision Department will assist you in selecting the appropriate contrast and message representations. The device is large and has 10 transparent picture holders. There are 6 levels of 10 messages each. It will be important to read the manual which provides information on safely changing the pictures without breaking the fluorescent tubes. Website: www.enablingdevices.com.