Four Compartment Scanning Communicator

This compartment communicator has two scan modes and 12 levels. Linear scanning allows the user to scan objects, photographs or symbols. Choose either automatic or inverse scanning with your external switch. Each compartment has its own switch for direct selection. Device has four 5-second messages on 12 levels.
Size: 18″L x 10″W x 6″H. Requires Capability Switch and 4 AA Batteries