User manual

Table of contents
1 General notes............................................................................................................................................... 4
2 Safety instructions..................................................................................................................................... 7
3 Installation and starting up................................................................................................................ 12
3.1 Pin assignment.................................................................................................................................. 13
4 Connections and operating elements........................................................................................... 16
5 Functions..................................................................................................................................................... 20
6 Technical specifications....................................................................................................................... 22
7 Protecting the environment.............................................................................................................. 24
Table of contents
HPA In Ear
3