1. Impossible to eavesdrop. Due to the encrypted nature of the digital transmission, it is impossible to eavesdrop on conversations that are transmitted via the Digisystem. 2. Flexible and versatile. Due to the family od Digisystem units, the equipment can be used in portable, fixed, multi-user environments. 3. Suited to all types of hearing instrument. 4. Stylish and discreet design.