Cypher.V Replacement Aux Cable Cord Wire, 3.5mm to 2.5mm for Bose NC700 QuietComfort QC25 QC35 QC35II QC45 Headphones (No Mic) (White)

Quick take

This Cypher.V replacement aux cable wire is made to restore a wired connection between a 3.5mm audio source and Bose QuietComfort on-ear headphones that use a 2.5mm plug. It uses a straight, male-to-male 3.5mm to 2.5mm design with a 140 cm (4.6 ft) length and a flexible TPE jacket intended to resist tangles. The key thing to double-check is connector contact fit for your specific headset, since compatibility is not always guaranteed for every cable port.

Pros and cons

Pros

  • Designed for specific Bose QuietComfort models that use a 2.5mm headphone connection (including NC700, QC45, QC35II, QC35, QC25).
  • 3.5mm to 2.5mm male-to-male aux connection (straight gold-plated plugs).
  • About 140 cm (4.6 ft) length for typical desk, couch, or travel setups.
  • Flexible TPE cable cover aimed at reducing knots and improving handling.

Cons

  • Connector/contact fit may vary by device, so it is important to confirm your headphone’s exact port requirement.
  • It is a wired-only replacement, so it will not add or enable any wireless features to your Bose headphones.

What buyers think

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Buyer-review evidence is generally positive, with multiple reports that the cable works as intended and matches Bose headsets that require an aux cable connection. Review themes focus on simple functionality (plug-in and audio works), and many buyers describe it as a good replacement for older Bose headphones.

What this cable is for

This is a replacement aux cable wire for Bose QuietComfort on-ear models that use a 2.5mm headphone-side connection and a 3.5mm audio source-side connection. In practical terms, you can use it when your existing cable is damaged, lost, or no longer provides a reliable connection.

Key specs that matter for buying

Connector type and compatibility

The cable is a 3.5mm to 2.5mm, male-to-male aux cable with a straight plug design. It is listed for Bose NC700 and several QuietComfort models including QC45, QC35II, QC35, and QC25, plus some additional Bose-compatible lines. Because connector fit is essential, confirm your exact Bose model and the port type on your headset before ordering.

Length and build

Length is approximately 140 cm (4.6 ft). The jacket is described as TPE (thermoplastic elastomer), intended to be flexible and more resistant to tangling and pulling than stiffer cable types. The cable weight is listed as about 11 grams, which is typical for a lightweight replacement cord.

Pros and cons in plain English

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Where it fits best

  • You have a compatible Bose QuietComfort headset and need a wired replacement aux lead.
  • You want a straightforward plug-in solution with a moderate 4.6 ft length for everyday listening.
  • You care about cable handling, since the flexible TPE jacket is aimed at reducing knots.

Who should be cautious

  • If you are unsure about your headset’s exact port (or you have a different Bose variant than the listed models), compatibility can be hit or miss, so it is worth double-checking before committing.
  • If you expect wireless use, this cable will not change anything, it is simply an aux replacement.

Verdict

If your Bose QuietComfort headset uses a 2.5mm headphone connection and you need a replacement aux cable, this Cypher.V 3.5mm to 2.5mm cord is a practical, lightweight option with a reasonable length and a cable jacket designed to be easy to live with. The main buying caveat is ensuring the connector contact fit matches your specific device, since that is the only notable compatibility snag mentioned by buyers.

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FAQ

Is this cable compatible with all Bose headphones?

It is specifically meant for Bose models that use a 2.5mm aux connection, including listed QuietComfort models such as NC700, QC45, QC35II, QC35, and QC25. If your Bose model uses a different connection type, you should not assume compatibility.

What connector sizes does it use?

It has a 3.5mm male plug on the audio-source side and a 2.5mm male plug on the headphone side (straight, male-to-male).

How long is the cable?

The length is approximately 140 cm, which is about 4.6 feet.

Does it include a microphone?

No. The listing describes it as a “No Mic” replacement aux cable.

Will it work with phones and laptops?

It is intended for use with devices that have a 3.5mm headphone jack, such as certain handsets, tablets, laptops, and PCs that support analog aux audio.

Specifications

Product TitleCypher.V Replacement Aux Cable Cord Wire, 3.5mm to 2.5mm for Bose NC700 QuietComfort QC25 QC35 QC35II QC45 Headphones (No Mic) (White)
CategoryElectronics > Headphones, Earbuds & Accessories > Extension Cords
BrandCypher.V
Manufacturerypn
Model NameReplacement cable for NC700 QC45 QC35 Headphones
Connectivity TechnologyAuxiliary
Item Weight11 Grams
ColorWhite
Connector TypeAuxiliary
Cable TypeAUX
Compatible DevicesHeadphone, Laptop, Music Player
Other Special Features of the Product3.5mm to 2.5mm Male to Male
Compatible Phone ModelsHandset with 3.5mm jack port.
Connector GenderMale-to-Male
Number of Pins3
Compatible Amazon Tablet ModelsAmazon Fire 5th Generation, Amazon Fire 7 5th Generation, Amazon Fire HD 10 5th Generation, Amazon Fire HD 6 4th Generation, Amazon Fire HD 7 4th Generation, Amazon Fire HD 8 5th Generation, Amazon Fire HDX 8.9 4th Generation, Amazon Kindle Fire 1st Generation, Amazon Kindle Fire 2nd Generation, Amazon Kindle Fire HD 2nd Generation, Amazon Kindle Fire HD 3rd Generation, Amazon Kindle Fire HD 4th Generation, Amazon Kindle Fire HD 8.9 2nd Generation, Amazon Kindle Fire HDX 3rd Generation
Indoor Outdoor UsageIndoor, Outdoor
Unit Count1.0 Count
Number of Items1
Brand NameCypher.V
Model700w
UPC016392131529
Part Number700w
Included Componentscable
Item ShapeCable
Outer MaterialThermoplastic Elastomer (TPE)
Special Feature3.5mm to 2.5mm Male to Male

Available variants

Color

  • White
  • Black

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