Button to switch the device on/ off and operate the volume mute function. button, to open the flip-release control panel Volume control BND•TS button Short press: Select the FM memory banks and the MW and LW wavebands. Long press: Start the Travelstore function. AUDIO button to adjust the bass, treble, balance and fader. Select an equalizer preset. Activate, deactivate and adjust X-BASS. Arrow buttons MENU button Short press: Open the settings menu. Long press: Start the scan function. TRAF•RDS button Short press: Switch traffic-information standby on/off. Long press: Switch the RDS function on/off. Keys 1 - 6