See also:

Lumbar support
The curvature of the seat backrest can be adjusted in such a way that it supports the lumbar region of the spine. The lower back and the spine are supported for upright posture. ► Press the ...

Phone book
Displays The phone book accesses the contacts and shows all contacts for which a phone number has been stored. The entries can be selected to make a call. 1. "Telephone" 2. "Ph ...

Screw thread
Push out the cover by pressing on the top edge. ...