This is for the Classic 300, Compact and Divino. Due to the magnetic waves produced as a waste product by the transducer in the sound processors, it is not possible to have an integral telecoil within these models. To enable good function of the telecoil it needs to be a minimum distance from the working parts of the sound processor.

This adapter plugs into the sound processor. There are two versions, one for the Classic 300 and one for the Compact and Divino. A telecoil is needed when the wearer wishes to use loop systems.