Bose Noise Cancelling 20i Manual

The Bose Noise Cancelling 20i are in-ear headphones featuring proprietary Active Noise Cancellation technology, StayHear+ tips for secure fit, inline microphone/remote for calls and music control, and a rechargeable battery. Compatible with iOS and Android devices. Below are key sections for safety, features, setup, operation, care, and troubleshooting.

1. Features at a Glance 2. What's in the Box 3. Getting Started 4. Specifications 5. Controls and Functions 6. Pairing with Devices 7. Using Noise Cancellation 8. Making & Receiving Calls 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: In-ear headphones with Active Noise Cancellation, inline remote with microphone, USB charging cable, carrying case, and multiple StayHear+ tip sizes.

Feature	Description
Active Noise Cancellation	Electronically reduces ambient noise for clearer audio
StayHear+ Tips	Secure, comfortable fit with noise isolating seal
Inline Microphone/Remote	Answer/end calls, control music, activate voice assistant
Rechargeable Battery	Up to 16 hours of battery life (ANC on)
Bluetooth Connectivity	Wireless pairing with smartphones and tablets
Aware Mode	Button to temporarily let in ambient sound
Voice Prompts	Audio guidance for battery, connection status
Carrying Case	Protective case for storage and travel
USB Charging Port	For recharging via included cable
Bose Connect App	Optional app for updates and settings

What's in the Box

Unpack and verify all contents.

Bose Noise Cancelling 20i headphones.
Three pairs of StayHear+ tips (S, M, L).
USB charging cable.
Carrying case.
Safety, Warranty, and Quick Start guides.

WARNING! Keep small parts away from children to avoid choking hazard.

Getting Started

Prepare headphones for first use.

Charge: Connect USB cable to headphones and power source. LED blinks white during charge, solid white when full.
Select Tips: Choose StayHear+ tip size that provides secure, comfortable seal.
Power On: Slide power switch to ON. Voice prompt will indicate power and battery level.
Pair: Enable Bluetooth on device, select "Bose QC 20i" from list.

CAUTION! Ensure headphones are fully charged before first use for optimal performance.

Specifications

Type: In-ear, Active Noise Cancelling.
Battery Life: Up to 16 hours (ANC on), 20 hours (ANC off).
Charging Time: Approx. 2 hours to full charge.
Connectivity: Bluetooth 4.1, NFC pairing (on supported devices).
Microphone: Integrated for calls and voice commands.
Controls: Inline remote for volume, playback, calls, ANC/Aware mode.
Compatibility: iOS, Android, and other Bluetooth devices.
Weight: Lightweight design for all-day comfort.
Warranty: Limited 1-year warranty.

Controls and Functions

Inline remote located on right earbud cable.

Buttons: Power (slide switch), Volume Up/Down, Multi-function (center button), ANC/Aware Mode button.

Music Control: Press Multi-function once to play/pause, twice to skip forward, three times to skip back. Calls: Press once to answer/end, press and hold to reject. Voice Assistant: Press and hold Multi-function to activate Siri/Google Assistant. Noise Cancellation: Press ANC/Aware button to toggle between full ANC and Aware mode (lets in ambient sound). Battery Check: Voice prompt on power on indicates battery level.

Pairing with Devices

Bluetooth pairing for wireless audio.

Turn on headphones (slide switch to ON).
Enable Bluetooth on smartphone/tablet.
Select "Bose QC 20i" from device list.
Confirm pairing if prompted.
Voice prompt will say "Connected to [device name]".

Tip: For NFC pairing, tap headphones to NFC-enabled device (if supported).

Using Noise Cancellation

Active Noise Cancellation reduces ambient noise.

Power on headphones; ANC is active by default (green LED on control module).
Press ANC/Aware button to switch to Aware mode (amber LED) to hear surroundings.
Press again to return to full ANC.
For optimal noise cancellation, ensure StayHear+ tips create a proper seal.
Use in environments like airplanes, offices, or busy streets.

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

Making & Receiving Calls

Inline microphone allows hands-free communication.

Answer Call: Press Multi-function button once.
End Call: Press Multi-function button once.
Reject Call: Press and hold Multi-function button.
Redial Last Call: Press Multi-function button twice when not on a call.
Volume: Adjust during call with Volume buttons.

Note: Ensure microphone is not obstructed for clear voice transmission.

Care & Maintenance

Unplug and power off before cleaning. Wipe with dry, soft cloth. Do not immerse in water.

CAUTION! Do not use liquids, solvents, or abrasives. Store in carrying case when not in use. Keep away from extreme heat.

Regulatory Information

FCC Compliance: This device complies with Part 15 of FCC rules. Operation is subject to condition that device does not cause harmful interference. Copyright © Bose Corporation. Bose and StayHear+ are trademarks of Bose Corporation. For support, visit www.bose.com/support or contact 1-800-999-2673.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Battery depleted	Charge headphones using USB cable.
Bluetooth not connecting	Out of range/pairing mode	Move closer to device; re-enter pairing mode (hold power switch for 10 seconds).
Poor audio quality	Low battery/obstructions	Charge battery; ensure clear line of sight between headphones and device.
Noise cancellation not working	ANC off/battery low	Press ANC/Aware button; charge if battery is low.
Microphone not picking up voice	Obstruction/wrong input	Ensure microphone is clear; check device audio input settings.

Reset: Hold power switch for 10 seconds to reset Bluetooth connection.

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