This unique audio-visual learning aid is the original card reader system. It provides a multi-sensory learning experience as students hear and see sounds and words at the same time. Students can also make their own recordings for instant feedback on their speech and language skills. Use with our printed cards or design your own teaching aids with our blank cards. The model 1752 is an attractive lightweight, portable unit. Battery / mains operated. It has push-button controls which are colour-coded. There is a Master track locking mechanism in the battery compartment which stops pupils from recording over the teacher recording .