With this adapter, you can charge Roger Neckloop in one of Phonak's charging stands for smoother and easier charging if you have multiple devices that need to be charged at the same time. The adapter sits stably and securely in the charging stand and you have dedicated slots for all Neckloops. Since Phonak's charging slots have a micro-USB connector and Roger Neckloop has USB-C, this adapter is needed to make them compatible with each other.