See also:

Adjusting the volume
Turn the volume button while giving an instruction until the desired volume is set. ▷ The volume remains constant even if the volume of other audio sources is changed. ▷ The volume i ...

Shoulder support
Also supports the back in the shoulder area: ▷ Results in a relaxed seating position. ▷ Reduces strain on the shoulder muscles. ...

Lateral ventilation
Thumbwheel for opening and closing the vents continuously, arrow 1. Lever for changing the air flow direction, arrow 2. ...