• Charge the battery only on a charger approved by Bose Corporation. Do not continue charging the battery if it does not reach full charge within the specified charging time. Doing so may cause the battery to become hot, rupture, or ignite.
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. Adjustable headband...
Preparing Your Headphones 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. Choose the correct plug adapter and attach it to the charger. Insert the battery into the charger.
Preparing Your Headphones Installing the battery Be sure to fully charge the battery before Battery first use. See “Charging the battery” on page 5. Headband Make sure the headphones power switch is off. Hold the headphones right earcup as shown. Insert the battery into the compartment.
Using Your Headphones Wearing your headphones Using Your Headphones You can use your headphones only for noise reduction or for listening to audio along with the benefit of noise reduction. As you put on the headphones, observe the L (left) and R (right) markings that identify the left and right earcups.
Page 8
Using Your Headphones Connecting to portable and home audio devices The 3.5 mm plug on the headphones cord allows you to connect your headphones to a variety of audio devices that use a 3.5 mm output jack: • CD, DVD, or MP3/digital audio player •...
Care and Maintenance Folding and storing Care and Maintenance ® ® QuietComfort 3 Acoustic Noise Cancelling headphones feature rotating earcups that fold flat for easy, convenient storage. Right Left CAUTION: The earcups rotate only in one direction. Incorrectly rotating the earcups can damage the headphones.
Care and Maintenance Cleaning Scheduled cleaning is not required. However, you can simply wipe the outside surface of the headphones with a damp cloth, as needed. Also, be sure that the earcup ports are clear and that no moisture is allowed into the earcups. Use only a dry cloth to clean the electrical contacts on the battery, in the charger, or in the battery compartment of the headphones.
Accessories ® You can purchase accessories from your Bose dealer, on the internet (www.bose.com), or by placing an order over the phone. See the inside back cover for contact information. • Battery • Replacement ear cushions • Battery charger •...