Bose QuietComfort 2 Instruction Manual

The Bose QuietComfort 2 is a premium noise-cancelling headphone model designed for superior audio quality and comfort during travel, work, or leisure. It features advanced noise cancellation technology, high-fidelity audio reproduction, a comfortable over-ear design with plush ear cushions, a foldable construction for portability, an integrated microphone for calls, and intuitive controls for power, volume, playback, and noise cancellation adjustment. Powered by a rechargeable lithium-ion battery with USB-C charging. Below are key sections for safety, features, setup, operation, care, and troubleshooting.

1. Features at a Glance 2. Unboxing and Contents 3. First-Time Setup 4. Specifications 5. Controls and Indicators 6. Connecting to Devices 7. Using Noise Cancellation 8. Using the Microphone 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Headphones with noise-cancelling technology, Carrying Case, USB-C Charging Cable, Audio Cable (3.5mm), Quick Start Guide.

Feature	Description
Noise Cancellation	Advanced electronic noise reduction for immersive listening
Audio Quality	High-fidelity sound with balanced bass and clear treble
Comfort Design	Plush ear cushions and adjustable headband for extended wear
Foldable Construction	Easily folds into included carrying case for travel
Integrated Microphone	Built-in mic for hands-free calls and voice assistant access
Battery Life	Up to 20 hours of wireless playback with noise cancellation on
USB-C Charging	Fast charging via USB-C port
Controls	Power/Bluetooth button, Volume/Playback buttons, Noise Cancellation button
Voice Prompts	Audio guidance for battery status and connection
Auxiliary Input	3.5mm audio jack for wired connection

Unboxing and Contents

Carefully unpack and verify all items are present.

Bose QuietComfort 2 Headphones
Carrying Case (with interior storage)
USB-C to USB-A Charging Cable (approx. 1m)
Audio Cable (3.5mm to 3.5mm, approx. 1.2m)
Quick Start Guide and Safety Information

WARNING! Keep plastic bags and small parts away from children to avoid choking hazard. Inspect for any shipping damage.

First-Time Setup

Prepare your headphones for first use.

Charge the headphones: Connect the USB-C cable to the headphones and a power source (computer or USB wall adapter). The indicator light will glow amber while charging and turn off when fully charged (approx. 2.5 hours).
Power on: Slide and hold the Power/Bluetooth button for 2 seconds. You will hear a power-on tone and see the battery indicator light.
Pair with a device: On first power-on, the headphones enter pairing mode (indicator flashes blue). Enable Bluetooth on your smartphone, tablet, or computer, select "Bose QuietComfort 2" from the list, and confirm pairing.
Adjust fit: Extend the headband and position ear cups comfortably over your ears.

CAUTION! Use only the provided USB-C cable or a certified equivalent for charging to avoid damage.

Specifications

Model: Bose QuietComfort 2.
Type: Over-ear, closed-back noise-cancelling headphones.
Wireless: Bluetooth 5.1 with support for SBC and AAC codecs.
Noise Cancellation: Active noise cancellation with adjustable levels.
Battery: Rechargeable lithium-ion, up to 20 hours playback (ANC on).
Charging: USB-C, approx. 2.5 hours to full charge; 15-minute quick charge provides up to 2.5 hours of playback.
Microphone: Integrated for calls and voice assistants (Google Assistant, Siri).

Connections: Bluetooth wireless, 3.5mm audio jack for wired use.

Weight: Approx. 240g (without cable).

Operating Temperature: 0°C to 45°C (32°F to 113°F).

Controls and Indicators

All controls are located on the right ear cup.

Buttons:

Power/Bluetooth: Slide and hold to power on/off; press once to enter pairing mode or check battery status.

Noise Cancellation: Press to cycle through noise cancellation levels (High, Low, Off). A voice prompt indicates the selected level.

Volume Up (+)/Volume Down (-): Press to adjust volume. Hold Volume Up to skip to next track; hold Volume Down to go to previous track.

Multi-function (Center Button): Press to play/pause audio or answer/end a call. Press twice to reject a call. Press and hold to activate your device's voice assistant (e.g., Siri, Google Assistant).

Indicator Light (next to Power button):

Solid White: Powered on, connected.

Flashing Blue: Pairing mode active.

Solid Amber: Charging.

Off: Fully charged or powered off.

Flashing Red: Battery critically low.

Connecting to Devices

For wireless Bluetooth or wired audio connection.

Bluetooth Pairing (New Device): Power on headphones (they enter pairing mode automatically if no device is remembered). On your source device, enable Bluetooth, find "Bose QuietComfort 2" in the list, and select to pair. A confirmation tone will sound.

Reconnecting: The headphones will automatically reconnect to the last used device when powered on, if that device's Bluetooth is on and in range.

Wired Connection: Connect the included 3.5mm audio cable from the headphone's AUX port to your device's headphone jack. The headphones will play audio without needing battery power, but noise cancellation requires battery.

Multi-point Connection: The headphones can remember up to 8 devices and be connected to 2 simultaneously. To switch between connected devices, pause audio on the first device and play on the second.

Tip: For best audio quality, keep the source device within 10 meters (33 feet) and minimize obstructions.

Using Noise Cancellation

Adjust the level of ambient sound reduction.

Press the Noise Cancellation button to cycle through modes: High (maximum noise reduction), LowOff (noise cancellation disabled, audio passes through).
A voice prompt will announce the selected mode (e.g., "Noise Cancellation High").
Use High for loud environments like airplanes or trains. Use Low for quieter offices or when you need some awareness of surroundings. Use Off to conserve battery or when you want to hear ambient sounds clearly.
Noise cancellation works in both wireless and wired modes when the headphones are powered on.

WARNING! Do not use noise cancellation in situations where you need full awareness of your surroundings, such as walking near traffic or in hazardous areas.

Using the Microphone

For phone calls and voice assistants.

Answering a Call: When a call comes in, press the Multi-function button once to answer.
Ending a Call: Press the Multi-function button once.
Rejecting a Call: Press the Multi-function button twice quickly.
Voice Assistant: Press and hold the Multi-function button to activate Siri, Google Assistant, or your device's default voice assistant. Release the button after you hear the activation tone, then speak your command.
The microphone includes noise-rejecting technology to improve call clarity in noisy environments.

Care & Maintenance

Proper care ensures longevity and performance.

Cleaning: Wipe the exterior surfaces with a soft, dry cloth. For ear cushions and headband, use a cloth slightly dampened with water. Do not use solvents, abrasives, or sprays.
Storage: Store in the provided carrying case when not in use, especially during travel. Fold the headphones by rotating the ear cups flat and folding the headband.
Battery: For long-term storage, charge the battery to about 50% and power off. Store in a cool, dry place. Avoid complete discharge for extended periods.
Avoid: Extreme temperatures, moisture, direct sunlight, and excessive pressure on the ear cups or headband.

CAUTION! Do not immerse any part of the headphones in water. The headphones are not waterproof.

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 Compliance: This Class B digital apparatus complies with Canadian ICES-003. Copyright © 2023 Bose Corporation. All rights reserved. Bose, the Bose logo, and QuietComfort are trademarks of Bose Corporation. Bluetooth® is a registered trademark of Bluetooth SIG, Inc. For support, visit www.bose.com/support or contact Bose Customer Service at 1-800-999-2673.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Headphones won't power on	Battery depleted	Charge using USB-C cable for at least 10 minutes, then try again.
No sound or distorted sound	Volume low / Connection issue	Increase volume on headphones and source device. Ensure Bluetooth connection is active or audio cable is fully inserted.
Bluetooth pairing fails	Headphones not in pairing mode / Interference	Press and hold Power button until you hear "Ready to pair" and indicator flashes blue. Move closer to device, away from other wireless sources.
Noise cancellation not working	Feature turned off / Battery low	Press Noise Cancellation button to cycle to desired mode. Charge the headphones.
Short battery life	High volume / ANC always on / Old battery	Reduce volume, use lower ANC setting when possible. If battery life is significantly reduced after years of use, contact Bose support.
Microphone not working on calls	Incorrect input selected on phone	On your phone, ensure audio output is set to "Bose QuietComfort 2" during the call.

Reset: If issues persist, reset the headphones: Power off. Press and hold the Power button for 10 seconds until the indicator flashes white, then release. The headphones will power off. Power on again to reconnect.

Service: 1-800-999-2673; www.bose.com/support