See also:

Radio
When the same radio source is selected in the front and rear (e.g., FM/AM), the same radio station is played. Operation is the same as for the front radio. ...

Communication
All of the options available to you for mobile communication with family, friends, business partners, and service providers are described in this chapter. ...

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