Over-ear noise-cancelling wireless headphones from Bowers & Wilkins with 40 mm bio-cellulose drive units, Bluetooth 5.3 with aptX Lossless and eight microphones. Bowers & Wilkins lists 30 hours of playback, and 7 hours from a 15 minute charge. Available in Anthracite Black, Canvas Grey and Indigo Blue.
Bowers & Wilkins says Px7 S3 uses advanced audio technology, developed from nearly 60 years of engineering expertise, for focused and immersive listening. It describes Px7 S3 as offering richer detail, deeper bass and better clarity than Px7 S2e, in a sleeker design with slimmer earcups.
Bowers & Wilkins on Px7 S3
Why you will love it
Bio-cellulose drive units and DSP
Each earcup has a 40 mm dynamic full-range bio-cellulose drive unit.
Bowers & Wilkins lists high-performance DSP with a dedicated DSP and amplifier/DAC, and a true 24-bit audio connection. The app has a 5-band customisable EQ and a TrueSound mode.


Noise cancellation and calls
Bowers & Wilkins says Px7 S3 has advanced noise cancellation that you can adapt to your surroundings. There are 8 microphones in total, 4 in each earcup.
For calls, Bowers & Wilkins lists the ADI Pure Voice algorithm. It says all of the microphones are used for talk.
aptX Lossless, aptX Adaptive and USB-C
Px7 S3 supports aptX Lossless, aptX Adaptive, aptX HD, aptX Classic, AAC and SBC over Bluetooth 5.3. Bowers & Wilkins says aptX Lossless and aptX Adaptive adjust dynamically to optimise performance and connection reliability.
The USB-C port is used for charging and as an audio interface. A USB-C to 3.5 mm audio cable is supplied.

Design and carry case
Bowers & Wilkins says Px7 S3 has an ergonomically tested design with slimmer earcups and a refined headband, with a fabric finish. The headphones weigh 300 g without the carry case.
A carry case is supplied.
Bowers & Wilkins Music app
Bowers & Wilkins says the Music app integrates your music streaming services, lets you set your preferred type of noise cancellation and adjust your audio preferences with a five-band EQ.

Is it right for you?
A great fit if you…
- Want over-ear noise-cancelling headphones with wireless and USB-C audio
- Use a phone or source that supports aptX Lossless, aptX Adaptive, AAC or SBC
- Take a lot of calls and want a microphone array on each earcup
- Own Px7 S2e and want an upgrade, as Bowers & Wilkins suggests
Worth knowing
- Battery life of 30 hours is Bowers & Wilkins' playback figure
- Bluetooth is wireless; the supplied USB-C to 3.5 mm cable is for wired listening
- The finish is fabric, not leather
- Bowers & Wilkins lists Px8 S2 with leather and aluminium and carbon drivers, if you want to compare
- Todds lists three finishes: Anthracite Black, Canvas Grey and Indigo Blue
Build your system
Bowers & Wilkins lists Px8 S2 as the model above Px7 S3 in its over-ear range.
- Step up: Compare the Px8 S2. Bowers & Wilkins lists it with 40 mm carbon drivers, leather and aluminium materials and 30 hours of playback
- Earbuds: See the Bowers & Wilkins Pi8 earbuds or Bowers & Wilkins Pi6 earbuds true wireless earbuds
- More headphones: Browse headphones
Specifications
Audio and wireless
| Wearing style | Over-ear noise-cancelling headphones |
|---|---|
| Drive units | 2 x 40 mm dynamic full-range bio-cellulose |
| Bluetooth | 5.3 with aptX Lossless |
| Codecs | aptX Lossless, aptX Adaptive, aptX HD, aptX Classic, AAC, SBC |
| Technical features | High-performance DSP with dedicated DSP and amplifier/DAC, true 24-bit audio connection, 5-band customisable EQ plus TrueSound mode, USB-C charging and audio interface |
| Microphones | 8 in total (4 per earcup: 1 feedback, 2 feedforward; all used for talk) |
| Voice call algorithm | ADI Pure Voice |
Battery and charging
| Battery type | Rechargeable lithium-ion |
|---|---|
| Battery life | 30 hours playback |
| Fast charge | 15 minute charge = 7 hours |
| Charging | USB-C |
Physical
| Weight | 300 g (without carry case) |
|---|---|
| Carry case dimensions | 177 mm (w) x 60 mm (d) x 234 mm (h) |
| Materials | Fabric finish |
Specifications from Bowers & Wilkins' Australian Px7 S3 page, checked November 2026.
What is in the box
- Px7 S3 headphones
- Carry case
- 1.2 m USB-C to 3.5 mm stereo jack audio cable
- 1.2 m USB-C to USB-C cable
Questions people ask
How long does the battery last?
Bowers & Wilkins lists 30 hours of playback, and 7 hours from a 15 minute charge.
Can I use them wired?
Yes. A 1.2 m USB-C to 3.5 mm stereo jack audio cable is supplied, and the USB-C port is also an audio interface.
Which Bluetooth codecs are supported?
aptX Lossless, aptX Adaptive, aptX HD, aptX Classic, AAC and SBC, over Bluetooth 5.3.
How many microphones are there?
Eight in total, four in each earcup.
Do they come with a case?
Yes. Bowers & Wilkins lists a carry case with the headphones.
Which colours are there?
Todds lists Anthracite Black, Canvas Grey and Indigo Blue.