Bose QuietComfort 3 Accoustic Noise Cancelling Headphones Owner’s Guide
Introducing QuietComfort® 3 Acoustic Noise Cancelling® headphones Thank you for purchasing the QuietComfort® 3 Acoustic Noise Cancelling® headphones from Bose. Our innovative technologies enable these on-ear headphones to reduce unwanted distractions while providing you with lifelike audio performance and a comfortable fit. Charging the battery Preparing Your Headphones Initial charging time for a new battery is approximately two hours.
After that, charging time varies depending on the battery charge state. 1. Insert the battery into the charger. 2. Swing the plug prongs out of the charger body. 3. Plug the charger into a live AC (mains) outlet. Battery handling and precautions • The battery does not have to be completely discharged in order to charge it. You can charge the battery at any time. • Never leave the battery in a discharged state. Charge after use and before storage. • Avoid extreme temperatures when charging the battery. Battery charging should occur within the temperature range of 32°F (0°C) to 95°F (35°C). • A fully charged battery provides approximately 20 hours of use. Replace the battery when it no longer provides adequate power after charging. To order a replacement battery, see “Troubleshooting” on page 10. • Keep the terminals on the battery, in the charger, and in the right earcup of the headphones clean at all times. Dirty terminals may cause poor electrical connec- tions and affect performance. For cleaning instructions, see “Cleaning” on page 10.
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