bose qc3 manual pdf

The Bose QuietComfort 3 (QC3) Acoustic Noise Cancelling headphones provide premium audio quality with advanced noise reduction technology, comfortable around-ear design, and convenient controls for music playback and calls. Below are key sections covering features, setup, operation, maintenance, and troubleshooting for optimal use.

1. Features at a Glance 2. Package Contents 3. Getting Started 4. Specifications 5. Controls and Functions 6. Connecting to Devices 7. Using Noise Cancellation 8. Battery Information 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Acoustic Noise Cancelling circuitry, around-ear cushions, inline remote with microphone, rechargeable battery, carrying case.

Feature	Description
Acoustic Noise Cancelling	Electronically reduces ambient noise for immersive listening
Around-ear design	Plush cushions for comfort and passive noise isolation
Inline remote	Controls for volume, playback, and call management
Built-in microphone	For hands-free phone calls
Rechargeable battery	Provides up to 35 hours of noise cancellation
Carrying case	For protection and portability
Audio input	3.5mm auxiliary input for wired connection
Power switch	Turns noise cancellation on/off
Battery indicator	LED shows battery status
Foldable design	For compact storage

Package Contents

Unpack and verify all items are present.

Bose QuietComfort 3 headphones
Carrying case
Aircraft adapter (dual-prong)
Audio cable (with inline remote)
USB charging cable
Rechargeable battery (installed)
Owner's guide

WARNING! Keep packaging away from children to prevent choking hazards. Inspect for damage before use.

Getting Started

Prepare headphones for first use.

Charge battery: Connect USB cable to power source and headphones; LED blinks amber during charging, turns off when full.
Power on: Slide power switch to "On" position; green LED indicates active noise cancellation.
Connect audio: Plug audio cable into headphones and device (phone, tablet, computer).
Adjust fit: Extend headband and position cushions around ears for comfort and seal.

CAUTION! Ensure battery is charged before first use. Do not expose to extreme temperatures.

Specifications

Type: Over-ear, closed-back headphones.
Noise Cancellation: Active electronic noise reduction.
Frequency Response: 10Hz - 20kHz.
Impedance: 32 ohms.
Battery: Rechargeable lithium-ion, up to 35 hours per charge.
Charging Time: Approximately 2.5 hours.
Connections: 3.5mm audio input, USB charging port.
Weight: 5.6 oz (160 g) without cable.
Operating Temperature: 32°F to 104°F (0°C to 40°C).

Controls and Functions

Access controls via inline remote and headphone buttons.

Inline Remote: Volume up/down, Play/Pause, Next/Previous track, Answer/End call, Mute microphone.

Headphone: Power switch (On/Off), Battery indicator LED (green = good, amber = low, red = critical). Noise Cancellation: Active when powered on; adjust level via connected device audio settings. Audio: Balance and EQ settings managed through source device. Battery: Monitor via LED; recharge when amber light appears.

Connecting to Devices

Compatible with phones, tablets, computers, and in-flight entertainment.

Turn on headphones and device.
Connect audio cable to headphone jack and device's audio output.
For calls: Ensure inline remote microphone is positioned near mouth.
For aircraft: Use included dual-prong adapter with in-flight systems.

Tip: Use high-quality audio sources for best sound. Ensure connections are secure.

Using Noise Cancellation

Optimize noise reduction for different environments.

Power on: Slide switch to activate noise cancellation.
Adjust fit: Ensure cushions seal around ears for maximum effectiveness.
Environment: Best for constant low-frequency noise (airplanes, offices).
Battery saving: Turn off when not needed to extend battery life.
Audio passthrough: Some models allow ambient sound awareness; check settings.

WARNING! Do not use in situations where awareness of surroundings is critical (e.g., traffic).

Battery Information

Rechargeable lithium-ion battery maintenance.

Charging: Use provided USB cable; LED blinks amber, solid green when full. Battery Life: Up to 35 hours of continuous use with noise cancellation on. Low Battery: LED turns amber; recharge promptly. Storage: Store with at least 50% charge in cool, dry place. Replacement: Contact Bose support for battery replacement; do not disassemble.

Care & Maintenance

Unplug before cleaning. Wipe surfaces with dry, soft cloth; avoid liquids.

Cushions: Remove and clean with mild soap and water if needed; air dry completely. Storage: Use carrying case to protect from dust and impact. Cable: Avoid sharp bends; disconnect by pulling plug, not cable.

CAUTION! Do not immerse in water; keep away from heat sources.

Regulatory Information

FCC Compliance: Part 15 Class B device; may not cause harmful interference. CE, RoHS compliant. Copyright © Bose Corporation; trademarks owned by Bose. For support, visit www.bose.com/support or contact 1-800-999-2673.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No sound	Power/battery/connections	Ensure power is on; check battery; verify audio cable connections.
Noise cancellation not working	Battery/switch	Charge battery; confirm power switch is in "On" position.
Poor audio quality	Source/cable/fit	Check audio source; try different cable; adjust headphone fit.
Battery not charging	Charger/port	Use provided USB cable and power source; ensure clean charging port.
Microphone not working	Connection/device settings	Check inline remote connection; verify device microphone permissions.

Reset: Power off and on; disconnect/reconnect audio cable.

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