When music means everything, there’s the next-gen QuietComfort Ultra Earbuds. Because every listen deserves the premium, personalized audio of CustomTune tech, our best in-ear noise cancellation, and the comfortable fit of our best earbuds. So you get a heart-stopping experience every time you press play.

Features 

In-ear Cinema sound

Make all your video content come to life in a whole new way with Cinema Mode. This new feature spatializes your audio while balancing background sounds and sound effects, giving you a theater-like experience in your earbuds.

Cut through the noise

Be heard loud and clear with Bose's best call quality. Our SpeechClarity tech uses noise-rejecting mics to filter out background sounds and wind to focus on your voice.

Premium, personalized audio

CustomTune tech adapts the sound to the shape of your ears for the best audio performance for you.

World-class noise cancellation

Choose Quiet Mode for our best in-ear noise cancelling, or Aware Mode to let in your surroundings.

Now charge wirelessly

Power up with the wireless charging case and listen for up to 6 hours of play time (up to 4 with Immersive Audio).¹ The case itself holds up to three full charges.²

Listen uninterrupted

Multipoint connectivity lets you pair to multiple devices at once and switch between them effortlessly.

 

What’s in the box 

2 Bose QuietComfort Ultra Earbuds (2nd Gen)

Bose Fit Kit:

3 pairs of eartips (S, M, L)

3 pairs of stability bands (1, 2, 3)

Wireless charging case

12" USB-C (A to C) cable

Safety sheet

Technical Specifications 

Headphone Fit: In Ear

Microphones: Built-in Microphone

Noise Cancelling: Yes

Noise Control Type: Adjustable Noise Cancelling

Water Resistant: IPX4

Maximum Talk Time: 4

Bud Single: 1.18" H x 0.49" W x 0.98" D (0.016 lb)

Case: 2.60" H x 2.35" W x 1.06" D (0.132 lb)

Product Material: Plastic (PC-ABS), Silicone, Metal

Rechargeable: Yes

Battery Life: 6 hours

Battery Charge Time: 2 hours

Charging Accessory included: Yes

Charging Interface(s): USB C PORT

Wireless Connectivity: A2DP Bluetooth Audio Streaming, HFP Bluetooth

Bose App: Bose App

1 Testing conducted by Bose in February 2025 using production-representative Bose QuietComfort Ultra Earbuds and a variety of music tracks using A2DP Bluetooth audio streaming at RSSI signal strength of 75dBm. Volume set to playback loudness of 75dB, 3-band EQ set, to zero in Quiet Mode (full noise cancellation). With Immersive Audio off, playback time was up to 6 hours before battery depletion. With Immersive Audio on, playback time was up to 4 hours before battery depletion. Battery life varies based on settings and usage. 2 Testing conducted by Bose in February 2025 by inserting production-representative Bose QuietComfort Ultra Earbuds with battery depleted (to the point of no audio playback) into a fully charged Bose QuietComfort Ultra Earbuds charging case and charging earbuds to 100%, then resuming audio playback until battery depletion. Testing resulted in three (3) complete charging cycles by the case before a full charge was no longer possible.