The RASSELMATZ is a sound memory with many ways of being played. To help increase acoustic perceptions, the RASSELMATZ is a bonus for the nursery, special needs school, pre-school, infant school and music school, as well as for logopaedic and ergotherapeutic practices.

In addition the RASSELMATZ is a valuable aid for parents and teachers in observing the developing hearing abilities of their children in their first years, and in identifying any possible impairments at an early stage.

The RASSELMATZ has two important features: on the one hand the child learns to listen out for a pair, from six different sounds, and put them together, and on the other hand, if abstract thinking and talking are already developed, learns to identify and name the sounds. In doing this, the child's acoustic senses are developed in a playful manner. Some of the tins produce nuanced broadband noises (100 – 8000 Hz) which are very similar because they don't have any marked frequency characteristics or noticeable spectral features. Only by training the hearing can they be distinguished from one another. One help in identifying them is the varying degree of loudness in the noises (between 50 and 85 Db/SPL at a distance of 1 m).

The RASSELMATZ consists of 12 optically identical tins = 6 noise pairs, and many ideas for games, in a high-quality beechwood case. You can increase the selection of sounds as you please, by sending in your own sound media, which we will then send back to you in RASSELMATZ sealed tins.