bose quietcomfort 3 headphones manual

The Bose QuietComfort 3 Acoustic Noise Cancelling headphones deliver premium audio quality with advanced noise reduction technology. Designed for travel and critical listening, they feature a comfortable around-ear fit, a rechargeable battery for the noise cancellation circuit, and an audio cable with in-line remote and microphone for compatible devices. Below are key sections for safety, features, setup, operation, care, and troubleshooting.

1. Features at a Glance 2. Package Contents 3. Getting Started 4. Specifications 5. Controls and Indicators 6. Using the Headphones 7. Battery and Charging 8. Care & Maintenance 9. Regulatory Information 10. Troubleshooting

Features at a Glance

Key components: Headphones with foldable design, Carrying case, Audio cable with remote/mic, Airline adapter, Charger.

Feature	Description
Acoustic Noise Cancellation	Electronically reduces ambient noise for clearer audio
Audio Input	3.5mm stereo jack for connecting to audio sources
Inline Remote	Volume control, play/pause, and call answer/end for compatible devices
Inline Microphone	For hands-free calls on compatible smartphones and devices
Battery Status LED	Indicates charging and battery level
Power Switch	Turns noise cancellation on/off
Foldable Design	For compact storage in included carrying case
Airline Adapter	Dual-prong adapter for in-flight entertainment systems
Rechargeable Battery	Internal lithium-ion battery powers noise cancellation
Comfort Fit	Plush ear cushions and adjustable headband

Package Contents

Unpack and verify all items are present.

Bose QuietComfort 3 headphones.
Audio cable with inline remote and microphone.
Carrying case.
Airline adapter (dual-prong).
USB charging cable (if applicable) or AC charger.
Quick start guide and warranty information.

NOTE: If any item is missing or damaged, contact Bose customer service immediately.

Getting Started

Prepare your headphones for first use.

Charge the battery: Connect the provided charger to the headphones' charging port and a power outlet. The LED will indicate charging status.
Connect audio: Plug the audio cable into the headphone jack on the left earcup and your audio source (phone, tablet, laptop, etc.).
Power on: Slide the power switch to the ON position to activate noise cancellation. You will hear a tone confirmation.
Adjust fit: Extend the headband and position the ear cups comfortably over your ears.

CAUTION! Ensure the headphones are fully charged before first extended use. Do not use while charging if not specified as safe.

Specifications

Type: Over-ear, closed-back acoustic noise cancelling headphones.
Driver: Proprietary Bose TriPort technology.
Frequency Response: Not specified by manufacturer (optimized for full-range audio).
Impedance: Not specified.
Battery: Rechargeable lithium-ion (provides up to [estimated] 35 hours of noise cancellation).
Charging Time: Approximately 2 hours for full charge.
Connector: 3.5mm stereo jack (audio input), Micro-USB or proprietary charging port.
Cable: Detachable audio cable with inline remote/mic (length approx. 48 inches).
Weight: Approximately 5.6 oz (160 grams).
Operating Temperature: 32°F to 104°F (0°C to 40°C).

Controls and Indicators

Primary controls are located on the headphones and the inline remote.

On Headphones: Power switch (ON/OFF), Charging port, Audio input jack (left earcup).

Inline Remote: Multi-function button (play/pause/answer call), Volume up (+) and down (-) buttons. Microphone port.

LED Indicator: Solid amber = Charging. Solid green = Fully charged. Flashing red = Low battery. Flashing amber/green = Error/requires service.

Noise Cancellation: Activated by power switch. A tone indicates power on/off.

Using the Headphones

For listening to audio and making calls.

Listening to Music/Audio: Power on headphones, connect to source, adjust volume on source or inline remote.
Answering a Call: Press the multi-function button once when a call comes in on a connected compatible device.
Ending a Call: Press the multi-function button once during a call.
Rejecting a Call: Press and hold the multi-function button for about 2 seconds.
Volume Control: Use the +/- buttons on the inline remote.
Play/Pause (Music): Press the multi-function button once.
Using on Airplanes: Connect the airline adapter to the audio cable, then plug into the airplane's audio jack.

Tip: For best noise cancellation, ensure ear cups form a proper seal around your ears.

Battery and Charging

The internal battery powers only the noise cancellation electronics. Audio will still play with noise cancellation off if the battery is dead.

Charging: Use only the provided Bose charger. Connect to a power outlet. LED shows amber while charging, green when full.
Battery Life: Up to an estimated 35 hours of use on a full charge (noise cancellation on).
Low Battery: The LED will flash red. A warning tone may sound periodically.
Conserving Battery: Turn noise cancellation off when not needed via the power switch.

WARNING! Do not use incompatible chargers. Do not expose the battery to extreme heat or dispose of in fire.

Care & Maintenance

Unplug cables before cleaning. Store in the provided case when not in use.

Cleaning: Wipe exterior surfaces with a dry, soft cloth. For ear cushions, use a cloth slightly dampened with water only. Do not use solvents or abrasives.

CAUTION! Do not immerse any part of the headphones in water. Keep away from liquids and excessive moisture. Do not attempt to disassemble.

Regulatory Information

FCC Compliance: This device complies with Part 15 of the FCC Rules. Operation is subject to the condition that this device does not cause harmful interference. ICES-003 (Canada): Complies with Canadian ICES-003 standard. Contains lithium-ion battery. Follow local regulations for battery disposal. Copyright and trademarks: © [Year] Bose Corporation. QuietComfort is a trademark of Bose Corporation. For support, visit www.bose.com/support or contact Bose Customer Service.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No sound	Cable not connected, source volume low, power off	Check cable connections at both ends. Increase source volume. Ensure power is ON for noise cancellation (audio may still play).
Noise cancellation not working	Battery depleted, power switch off	Charge the headphones. Slide power switch to ON position.
Intermittent sound or static	Loose or damaged cable, dirty connector	Firmly reconnect the audio cable. Try a different audio cable. Clean the 3.5mm connectors with a dry cloth.
Cannot charge / LED not lighting	Faulty charger, power outlet issue, charging port debris	Try a different USB port or power outlet. Ensure charger is firmly connected. Gently clean the charging port.
Inline remote not working	Device incompatibility, cable issue	Confirm device compatibility with inline remote functions. Test headphones with a different device.
Poor call quality (microphone)	Microphone blocked, connection issue	Ensure the inline microphone is not covered. Check cable connection. Use in a quieter environment.

Reset: If experiencing persistent issues, fully discharge the battery, then recharge fully.

Service: For product service, visit www.bose.com/support or call Bose Customer Service.