The Bose QuietComfort 3 (QC3) Acoustic Noise Cancelling headphones deliver premium audio quality with industry-leading noise cancellation technology. Designed for travel and critical listening, they feature a comfortable around-ear fit, rechargeable battery, and include accessories like an airline adapter, carrying case, and audio cables. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.
Key components: Headphones with integrated noise cancellation electronics, Control Module with inline microphone/remote, Carrying Case, Rechargeable Lithium-ion battery, Audio cables, Airline adapter.
| Feature | Description |
|---|---|
| Acoustic Noise Cancellation | Electronically reduces ambient noise for clearer audio |
| TriPort Acoustic Headphone Structure | Delivers balanced audio with deep low notes |
| Control Module | Inline remote with microphone for calls and music control |
| Rechargeable Battery | Provides up to 25 hours of noise cancellation |
| Airline Adapter | Dual-prong adapter for in-flight entertainment systems |
| Carrying Case | Protective case for travel and storage |
| Audio Input | Standard 3.5mm stereo jack for audio sources |
| Battery Status Indicator | LED shows charging and battery level status |
| Foldable Design | Ear cups rotate and fold for compact storage |
| Comfort Fit | Plush ear cushions and adjustable headband |
Unpack and verify all contents are present.
WARNING! Keep plastic bags away from children to avoid suffocation hazard.
Prepare your headphones for first use.
CAUTION! Use only Bose-approved batteries and accessories.
Power Switch: On/Off slider on right ear cup. Control Module: Inline remote with microphone, volume buttons, and multi-function button.
LED Indicators: Right ear cup LED - Green (power on), Amber (charging), Off (charged or power off).
Control Module Functions: Volume Up/Down buttons, Multi-function button (play/pause, answer/end call, track skip with double/triple press). Microphone for phone calls and voice commands.
Connect to devices with 3.5mm audio jack: smartphones, tablets, laptops, in-flight entertainment.
Tip: Use right-angle cable for pocket devices to reduce strain on connector.
Noise cancellation works without audio playback for quiet environments.
WARNING! Do not use in situations where awareness of surroundings is critical (e.g., walking near traffic).
Battery provides up to 25 hours of noise cancellation. Charging via USB port on Control Module.
Charging: Connect USB cable to powered USB port or adapter. Amber LED blinks during charge, turns off when full (approx. 2.5 hours).
Low Battery: LED flashes amber when battery is low. Audio continues but noise cancellation may weaken.
Battery Replacement: Contact Bose customer service for battery replacement; do not attempt to replace yourself.
Store in carrying case when not in use. Clean with dry, soft cloth only.
Cleaning: Wipe ear cushions and headband with dry cloth. For deeper cleaning, use cloth slightly dampened with water. Do not use solvents or abrasives.
Storage: Fold ear cups and place in carrying case. Avoid extreme temperatures and humidity.
CAUTION! Do not expose to liquids; avoid pulling cables forcefully.
FCC Compliance: This device complies with Part 15 of FCC Rules. Operation is subject to interference that may cause undesired operation. ICES-003: Complies with Canadian ICES-003. Battery Disposal: Dispose of battery according to local regulations. Copyright © Bose Corporation. Bose and QuietComfort are trademarks of Bose Corporation. For support, visit www.bose.com or contact Bose Customer Service.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| No power/no LED | Battery depleted | Charge battery for at least 30 minutes; ensure power switch is On. |
| Noise cancellation not working | Power off/low battery | Turn power on; charge battery if LED flashes amber. |
| No sound from one/both sides | Connection/audio source | Check cable connections; try different audio source; test with other headphones. |
| Distorted sound | Source volume too high | Reduce volume on audio source; check audio file quality. |
| Battery not charging | USB power/cable issue | Try different USB port/cable; ensure connection is secure. |
| Microphone not working on calls | Connection/phone settings | Ensure Control Module is connected; check phone audio settings. |
Reset: Power off, disconnect cables, wait 30 seconds, then reconnect and power on.
Service: Contact Bose Customer Support or visit www.bose.com/support