Press combinations of buttons to enter commands. The similarity to a 6-dot Braille cell makes it easy to remember advanced mnumonic commands. The included power supply provides a full charge in about 2 hours, even while the RBT 40 is in use. With normal usage, the RBT 40 needs to be charged only once a week, allowing you to travel without the inconvenience of a charger. The RBT 40 uses the most modern Surface Mounted techniques, providing high reliability and low space requirements.
Flash memory is used to allow easy upgrades of the firmware to install updated or new protocols.
Output ports provide standard serial output. Parallel connections are available through an optional interface. The user interface consists of 6 function keys for commands. Multiple protocols allow RBT 40 to be used with different screen readers.