Bose QuietComfort Earbuds II True Wireless Noise-Cancelling Earphones – Triple Black, Small Fit (Open Sealed)

Description

The Bose QuietComfort Earbuds II are premium true-wireless earphones designed to deliver personalized sound and powerful adjustable noise cancellation. Bose CustomTune technology measures the acoustic characteristics of the user’s ears each time the earbuds are inserted, then automatically optimizes the sound profile and noise-cancelling performance.

Quiet Mode provides maximum noise cancellation for immersive listening, while Aware Mode allows surrounding sound to pass through. ActiveSense technology can soften sudden or particularly loud noises while Aware Mode is active.

The earbuds support Bluetooth 5.3, built-in microphones, touch controls, adjustable EQ, independent single-earbud operation, and compatibility with Apple and Android devices. Battery life reaches up to six hours per charge, with three additional charges from the USB-C case for up to approximately 24 hours of total listening.

This Triple Black unit is sold in Open Sealed condition. The packaging has been opened, so the earbuds, charging case, Fit Kit, batteries, microphones, touch controls, and accessories should be fully inspected before delivery.

Key Features

• Premium true-wireless in-ear earphones
• Triple Black color
• Bose proprietary Active Noise Cancelling
• CustomTune personalized sound calibration
• Personalized noise-cancelling performance
• Quiet Mode
• Aware Mode
• ActiveSense technology
• Adjustable noise-cancelling modes
• Clear, balanced Bose sound
• Adjustable bass, midrange, and treble
• Bluetooth 5.3
• Compatible with Apple and Android
• Built-in microphones for calls
• Capacitive touch controls
• Touch volume adjustment
• Mobile voice-assistant support
• Independent left or right earbud operation
• IPX4 sweat and water resistance
• Up to six hours per charge
• Up to approximately 24 hours with the case
• Quick charging
• USB-C charging case
• Three ear-tip sizes
• Three stability-band sizes
• Bose app support
• Condition: Open Sealed

CustomTune Sound Calibration

CustomTune technology plays a brief calibration tone when the earbuds are inserted. Built-in microphones measure how the sound interacts with the unique shape of the user’s ear canal.

The earbuds then automatically adjust:

• Noise-cancellation response
• Audio balance
• Frequency reproduction
• Aware Mode performance
• Overall listening presentation

The calibration occurs quickly and is intended to provide more consistent sound and noise cancellation across different users and ear shapes. Bose CustomTune overview

Active Noise Cancelling

The QuietComfort Earbuds II use Bose’s proprietary noise-cancelling technology to monitor and reduce surrounding sound.

Noise cancellation is particularly useful for:

• Air travel
• Public transportation
• Offices
• Cafés
• Commuting
• Studying
• Working from home
• Listening near air conditioners or engines

Noise-cancellation performance depends on the selected mode, correct ear-tip fit, stability-band position, firmware, and listening environment.

Quiet Mode

Quiet Mode applies the strongest available noise cancellation, helping the listener focus on music, podcasts, calls, or work.

It is designed for situations where maximum isolation is preferred, such as:

• Flights
• Trains
• Busy offices
• Loud public spaces
• Focused study sessions
• Commuting

Aware Mode

Aware Mode allows outside sounds to pass through the earbuds while audio continues playing.

It is useful for:

• Walking outdoors
• Hearing announcements
• Talking briefly with someone
• Working in a shared space
• Remaining aware of traffic
• Exercising in public areas

Aware Mode should not replace proper attention around vehicles or other hazards.

ActiveSense Technology

ActiveSense works with Aware Mode to reduce the impact of sudden or unusually loud sounds while maintaining environmental awareness.

Examples include:

• Passing vehicles
• Construction noise
• Loud public announcements
• Sudden background sounds

ActiveSense behavior can be adjusted through the Bose app.

Bose Fit Kit

The standard package includes a two-part Fit Kit:

• Small, medium, and large silicone ear tips
• Stability bands in sizes 1, 2, and 3

Ear tips and stability bands can be mixed independently, providing up to nine possible fit combinations for each ear.

The word “Small” in some retailer titles usually refers to the selected or installed ear-tip size. The QuietComfort Earbuds II are not manufactured as a separate smaller electronics model. A complete retail package should normally contain all three standard ear-tip and stability-band sizes.

An Earbud Seal Test is available in the Bose app to help select the proper fit. Correct fitting is important for comfort, bass response, microphone performance, and noise cancellation. Bose fitting guidance

Bluetooth 5.3 Connectivity

Bluetooth 5.3 provides wireless compatibility with supported:

• Android smartphones
• Apple iPhone
• Android tablets
• iPad
• Windows computers
• MacBook models
• Bluetooth-enabled televisions
• Other Bluetooth audio devices

The typical operating range is approximately 9–10 meters under suitable conditions. Walls, wireless interference, the user’s body, and other Bluetooth devices can reduce the effective range.

Device Memory and Multipoint Limitation

The QuietComfort Earbuds II can remember multiple previously paired devices—up to seven according to Bose—but maintain an active connection to only one device at a time.

They do not support simultaneous Bluetooth multipoint operation. To change devices, select the earbuds from the second device’s Bluetooth menu; they will disconnect from the first device and connect to the selected device.

Independent Single-Earbud Use

With current firmware, either the left or right earbud can be used independently for audio or phone calls.

This feature requires firmware version 1.3.26 or newer and is useful when:

• One earbud is charging
• The user needs increased environmental awareness
• Making voice calls
• Extending practical listening time

Firmware updates are delivered through the Bose app. Bose firmware information

Adjustable EQ

The Bose app provides adjustable equalization controls for:

• Bass
• Midrange
• Treble

Users can customize the sound for music, podcasts, movies, and personal listening preferences.

These earbuds do not include Bose Immersive Audio. That feature belongs to later QuietComfort Ultra models.

Built-In Microphones

Integrated microphones support:

• Phone calls
• Video meetings
• Voice messages
• Noise cancellation
• CustomTune calibration
• Aware Mode
• Mobile voice assistants

Call quality depends on background noise, wind, Bluetooth signal, phone hardware, application, and internet connection.

Capacitive Touch Controls

Touch-sensitive surfaces on both earbuds provide access to common commands.

Supported controls include:

• Play and pause
• Skip tracks
• Answer calls
• End calls
• Reject calls
• Swipe to adjust volume
• Switch noise-control modes
• Activate the configured shortcut
• Access the connected device’s voice assistant

Touch-control shortcuts can be configured in the Bose app.

Battery Life

Actual battery life depends on volume, noise-control mode, calls, Bluetooth signal, firmware, temperature, and battery age.

Bose confirms up to six hours per charge, three additional case charges, and the 20-minute quick-charge rating. Bose battery specifications

USB-C Charging Case

The portable case stores, protects, pairs, updates, and charges the earbuds.

Charging details:

• USB-C port
• USB-A to USB-C cable included
• Approximately three-hour case charging time
• Three additional earbud charges
• Status indicator on the front
• Internal earbud-status light
• Power adapter not included

The original case does not include native wireless charging. Bose previously offered a separate wireless-charging case cover, but it is not part of the standard package.

IPX4 Sweat and Water Resistance

The earbuds are IPX4-rated for resistance to sweat and water splashes.

They are suitable for:

• Gym workouts
• Running
• Walking
• Normal perspiration
• Light accidental splashes

They are not suitable for:

• Swimming
• Showering
• Water sports
• Full immersion
• Cleaning under running water

The charging case is not water-resistant and should remain completely dry.

Specifications

The dimensions, weight, battery rating, Fit Kit contents and one-device-at-a-time limitation are documented on the official Bose QuietComfort Earbuds II product page.

Package Contents

The standard retail package includes:

• Bose QuietComfort Earbuds II ×2
• Triple Black Charging Case ×1
• Small, Medium and Large Ear Tips
• Stability Bands in Sizes 1, 2 and 3
• 30cm USB-A to USB-C Charging Cable ×1
• Quick Start Guide
• Safety Sheet

A USB power adapter is not included. Package contents should be physically confirmed because the unit is Open Sealed.

Open Sealed Inspection Checklist

Before delivery, confirm:

• Product is QuietComfort Earbuds II
• Product is not first-generation QuietComfort Earbuds
• Product is not QuietComfort Ultra Earbuds
• Both Triple Black earbuds are present
• Matching charging case is included
• All three ear-tip pairs are included
• All three stability-band pairs are included
• Ear tips appear unused and hygienically clean
• USB charging cable is included
• Left and right earbuds charge correctly
• Case accepts and holds a charge
• Battery levels display in the Bose app
• Both audio channels work correctly
• Quiet Mode operates correctly
• Aware Mode operates correctly
• ActiveSense functions correctly
• CustomTune calibration tone plays
• Earbud Seal Test completes
• Touch and swipe controls work
• Microphones work during calls
• Each earbud works independently after updating
• USB-C port and charging pins are undamaged
• Case hinge and pairing button work correctly
• Speaker meshes are clean
• Serial number appears in the Bose app
• Firmware updates successfully
• Earbuds have been reset and removed from previous devices

Because these are in-ear products, all ear tips, stability bands, speaker meshes, and charging contacts should be hygienically inspected before sale.

Important Notes

• These are QuietComfort Earbuds II, not QuietComfort Ultra Earbuds.
• Bose Immersive Audio is not supported.
• “Small” normally describes an ear-tip selection, not a separate smaller earbud model.
• The standard package includes small, medium, and large fitting components.
• Simultaneous Bluetooth multipoint is not supported.
• Native wireless case charging is not included.
• A USB power adapter is not supplied.
• IPX4 means splash-resistant, not waterproof.
• The charging case is not water-resistant.
• Proper ear-tip sealing is essential for effective noise cancellation.
• Battery runtime depends on usage and battery health.
• Independent single-earbud use requires current firmware.
• App features require the Bose app and a compatible mobile device.
• Warranty coverage depends on the seller and Open Sealed condition.

Best For

• Air travel
• Daily commuting
• Office use
• Studying
• Music and podcasts
• Phone and video calls
• Gym workouts
• Running
• Apple users
• Android users
• Users who prioritize strong noise cancellation
• Users who need multiple fitting combinations
• Users who prefer adjustable EQ and noise-control modes

Why Choose Bose QuietComfort Earbuds II?

• Powerful Bose noise cancellation
• Personalized CustomTune calibration
• Quiet and Aware listening modes
• ActiveSense protection from sudden sounds
• Adjustable bass, midrange, and treble
• Comfortable two-part Fit Kit
• Nine possible fit combinations per ear
• Bluetooth 5.3 connectivity
• Built-in microphones
• Complete touch and volume controls
• Independent single-earbud operation
• Up to six hours per charge
• Up to approximately 24 hours with the case
• Quick charging
• USB-C connectivity
• IPX4 sweat and splash resistance
• Premium Triple Black finish
• Open Sealed condition can provide strong value when fully inspected and tested