See also:

DTMF suffix dialing
DTMF suffix dialing can be used for gaining access to network services or for controlling devices, e.g., to make a remote inquiry of an answering machine. The DTMF code is needed for this purp ...

Opening
Pull on the opener and fold the cooler forward. ...

Maintaining/storing the speed
Press the button. or: Press the rocker switch while the system is interrupted. When the system is switched on, the current speed is maintained and stored as the desired speed. It is d ...