Bose QuietComfort 15 Owner's guide - Page 5

English TAB 2, 10 TAB 3, 11 TAB 4, 12 TAB 5, 13 TAB 6, 14 TAB 7, 15 TAB 8, 16 For noise reduction and audio R L 2. Connect the headphones cord to an audio source. For information on using your headphones on an airplane, see "Connecting to in-flight entertainment systems" on page 4. You can use the headphones with a variety of audio sources: airline audio, a CD, DVD or MP3 player, a personal or laptop computer, or home stereo. The maximum input voltage is 9 Vrms. To enjoy both noise reduction and audio: 1. Gently push the headphones plug all the way into the connector opening on the left earcup, until the plug housing is flush with the earcup. Note: The LO setting of the LEVEL switch lowers the volume levels of strong audio output signals which are common on airline systems. If you find that the volume level is too low, set the LEVEL switch to HI. The switch has no effect on noise reduction performance. 3. Put on the headphones. On the right earcup, slide the power switch forward to the On position. The battery light indicator will illuminate. 3