Owen PalmerBy Owen Palmer

Updated November 2026

Owners of bose quiet comfort headphones buttons often find that a worn power switch or a sticky noise cancelling action button is the first thing to fail, long before the battery or the ear cushions give out. This guide is for people who want to repair a specific control rather than replace the whole headset. The selection criteria were model compatibility with the QuietComfort 35 and QuietComfort 45 families, whether the part is described as a direct replacement, the clarity of listing details, and the kind of owner feedback that tends to show up for small switch parts. This is a research-based comparison of listings, not a hands-on test.

Our top picks at a glance

  1. 1Power Button, Sliding Spring Switch Replacement for Bose QC35 QC45 HeaTOP CHOICEBest overallPower Button, Sliding Spring Switch Replacement for Bose QC35 QC45 HeaView on Amazon
  2. 2Bose Power Button, Slide Switch Replacement for QC35, QC45 Headphones,Best for a like-for-like slide switchBose Power Button, Slide Switch Replacement for QC35, QC45 Headphones,View on Amazon
  3. 3Headphone Replacement Button for Bose for QuietComfort 35 45, QC35 IIBest for the noise cancelling action buttonHeadphone Replacement Button for Bose for QuietComfort 35 45, QC35 IIView on Amazon

Our Top Picks

Before choosing, it helps to know which control you are fixing. On QC35 and QC45 headsets the power slider and the noise cancelling button are separate parts, and listings sometimes blur them together. Check which one has stopped responding before you order.

Quick Comparison

Product Best for Key feature
Power Button, Sliding Spring Switch Replacement for Bose QC35 QC45 Headphone Repair Parts for QuietComfort 45 35 Power Slider Switch Owners replacing a worn power slider Sliding spring switch design listed for QC35 and QC45
Bose Power Button, Slide Switch Replacement for QC35, QC45 Headphones, Black, Slide Actuator, Manual Operation Owners who want a simple slide actuator swap Slide actuator with manual operation, black finish
Headphone Replacement Button for Bose for QuietComfort 35 45, QC35 II QC45 Left Ear Noise Cancelling Button Action Button, Option Button (Black) Owners whose noise cancelling or action button no longer clicks Left ear action button listed for QC35 II and QC45

Power Button, Sliding Spring Switch Replacement for Bose QC35 QC45 Headphone Repair Parts for QuietComfort 45 35 Power Slider Switch

Power Button, Sliding Spring Switch Replacement for Bose QC35 QC45 Headphone Repair Parts for QuietComfort 45 35 Power Slider Switch

Power Button, Sliding Spring Switch Replacement for Bose QC35 QC45 Headphone Repair Parts for QuietComfort 45 35 Power Slider Switch

View on Amazon

Best for: Overall replacement of a worn power slider with a spring-loaded switch.

This part suits owners whose headset powers off on its own, needs several presses to switch on, or has a loose slider. The listing is aimed at both QC35 and QC45 repairs, which makes it a practical choice if you own either model.

Key specs:

  • Sliding spring switch design
  • Listed compatibility with Bose QC35 and QC45 headphones
  • Sold as a repair part for the power slider

Pros

  • Named specifically for the power slider, so the fit question is clearer than with generic parts
  • Covers both QC35 and QC45 in one listing
  • Spring switch design matches the function of the original slider

Cons

  • Installation needs a small screwdriver and patience with the housing clips
  • Owners should confirm the part matches their exact model before fitting

Bottom line: Best for owners who want the most descriptive listing for a worn power slider on either QC35 or QC45.

View on Amazon

Bose Power Button, Slide Switch Replacement for QC35, QC45 Headphones, Black, Slide Actuator, Manual Operation

Bose Power Button, Slide Switch Replacement for QC35, QC45 Headphones, Black, Slide Actuator, Manual Operation

Bose Power Button, Slide Switch Replacement for QC35, QC45 Headphones, Black, Slide Actuator, Manual Operation

View on Amazon

Best for: A simple like-for-like slide actuator swap on a black headset.

This is the right pick if the slider still moves but no longer registers, or if you want a part that is explicitly black to match the original finish. The “manual operation” wording points to a mechanical actuator rather than an electronic module.

Key specs:

  • Slide actuator, manual operation
  • Black finish
  • Listed for QC35 and QC45 headphones

Pros

  • Black finish is listed, which helps with cosmetic matching
  • Mechanical slide design is straightforward to understand
  • Clearly labeled as a Bose power button replacement

Cons

  • Fitment still depends on matching the original slider shape closely
  • Requires opening the earcup, which can be fiddly for first-time repairers

Bottom line: A good fit for owners who want a black, mechanical slide replacement for QC35 or QC45.

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Headphone Replacement Button for Bose for QuietComfort 35 45, QC35 II QC45 Left Ear Noise Cancelling Button Action Button, Option Button (Black)

Headphone Replacement Button for Bose for QuietComfort 35 45, QC35 II QC45 Left Ear Noise Cancelling Button Action Button, Option Button (Black)

Headphone Replacement Button for Bose for QuietComfort 35 45, QC35 II QC45 Left Ear Noise Cancelling Button Action Button, Option Button (Black)

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Best for: Replacing a noise cancelling or action button on the left earcup that no longer clicks.

Choose this part if the problem is the left-ear button rather than the power slider. The listing covers QC35 II and QC45 and names the button by its function, which is useful when you are matching a failed control.

Key specs:

  • Left ear action or option button
  • Black color
  • Listed for QuietComfort 35, QC35 II and QC45

Pros

  • Targets the left-ear noise cancelling button specifically
  • Covers the QC35 II variant as well as QC45
  • Black color is listed for a closer match

Cons

  • Button replacements can require careful soldering or clip work depending on the design
  • Confirm the left versus right side before ordering, since parts are not interchangeable

Bottom line: The right choice for owners whose left-ear noise cancelling or action button has failed on a QC35 II or QC45.

View on Amazon

Buying Guide

Identify which button has failed

Power sliders and noise cancelling buttons are separate controls. Test the power slider by sliding it fully off and on a few times while listening for the connection tone. If the slider moves freely but the headset does not respond, the switch contacts are likely the issue. If the noise cancelling button does nothing, the left-ear button is the target.

Good picks for this: Power Button, Sliding Spring Switch Replacement; Headphone Replacement Button for Bose

Confirm your exact model

QC35, QC35 II and QC45 share a family look but not identical internals. Check the model number printed inside the headband or on the box before buying. Parts listed for one family may not seat correctly in another.

Good picks for this: Bose Power Button, Slide Switch Replacement for QC35, QC45; Power Button, Sliding Spring Switch Replacement

Mechanical versus button-style design

A slide actuator moves a physical contact, while a button-style part presses a tactile switch. Knowing which design your headset uses prevents buying the wrong style. Compare the original part with the listing photos before ordering.

Good picks for this: Bose Power Button, Slide Switch Replacement; Headphone Replacement Button for Bose

Color and finish

Black is the most common finish on these headsets, and a mismatched color on an exposed control is noticeable. If your headset is black, a black replacement will blend in better than a contrasting part.

Good picks for this: Bose Power Button, Slide Switch Replacement; Headphone Replacement Button for Bose

Repair difficulty

Earcup disassembly varies by model. Plan for a small Phillips screwdriver, a plastic pry tool to avoid scratching the shell, and a clean work surface. Some button swaps need a soldering iron, so check whether the part is a plug-in replacement or needs soldered connections.

Good picks for this: Power Button, Sliding Spring Switch Replacement; Bose Power Button, Slide Switch Replacement

Durability and expected wear

Sliders and buttons wear with repeated use, and the contacts inside can oxidize over time. A new part restores the mechanical action, but it will not fix a degraded battery or damaged circuit board. If the problem returns quickly, the internal connector may need inspection.

Good picks for this: Power Button, Sliding Spring Switch Replacement; Headphone Replacement Button for Bose

Care after installation

Keep the headset dry during reassembly and avoid liquid cleaners near the switch housing. Wipe the exterior with a soft, slightly damp cloth and let it dry fully before charging. If you notice the new part sticking, a small amount of dry contact cleaner can help, but do not flood the housing.

Good picks for this: Bose Power Button, Slide Switch Replacement; Power Button, Sliding Spring Switch Replacement

FAQ

Can I replace the power button myself?

Many owners do, using a small screwdriver and a plastic pry tool. Work slowly, photograph the earcup before disassembly, and keep track of small clips and screws. If you are uncomfortable with the repair, a qualified electronics technician can handle it.

Will one part fit both QC35 and QC45?

Some listings state compatibility with both families, but always check the model number on your headset. Matching the printed model is the safest way to confirm fit before you open the earcup.

What is the difference between a slide switch and a button?

A slide switch moves a mechanical actuator along a track to power the headset on or off. A button uses a tactile press to trigger a function such as noise cancelling or an action command. They are separate controls and must match the failed part.

Do I need to solder to replace these parts?

It depends on the design. Some parts are designed to plug into existing contacts, while others require soldered connections. Read the listing details and compare them with the original part before deciding.

Will replacing the button fix battery problems?

No. A new button or slider restores the control action only. If the battery drains quickly or the headset will not charge, the battery or charging circuit is the likely cause. For battery safety concerns, consult a qualified repair professional.

How do I know which side button I need?

Check which earcup has the non-responsive control. Parts are often specific to the left or right side, so compare the replacement with the original before ordering.

Conclusion

For a worn power slider on a QC35 or QC45, the spring-loaded switch listing is the most descriptive option, while the black slide actuator is a straightforward alternative. If the noise cancelling button on the left earcup has failed on a QC35 II or QC45, the dedicated left-ear button part matches that need directly. Confirm your model number and identify the failed control before ordering, and check the repair steps carefully.

Sources

Owen Palmer

About Owen Palmer

Owen Palmer is part of our editorial team and reviews and edits our brand headphones & noise cancelling guides, checking product details against manufacturer specifications and owner feedback.