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From the manufacturer
Bowers & Wilkins PI4 In-ear noise-canceling wireless headphones
Designed for Movement
Customized 14mm drivers pack full sound in a small space. Designed by the same team behind our 800 Diamond Series speakers used in Abbey Road, the drivers ensure you stay immersed in music wherever you go.
Silicone and rubber make PI4 feel specifically designed for how you listen. Soft but durable materials designed for how you live, a moment at a time.
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| PX7 Over-Ear Noise Cancelling Wireless Headphone | PX5 On-Ear Noise Cancelling Wireless Headphone | PI3 In-Ear Dual Driver Wireless Headphone | PI4 In-Ear Wireless Headphones with Active Noise Cancelling | |
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| Customer Reviews |
2,527
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| Price | — | — | $99.99 | — |
| Wearing Style | Over-Ear | On-Ear | In-Ear | In-Ear |
| Color | Space Grey, Sliver | Space Grey, Blue | Space Grey, Blue, Gold | Black, Silver, Gold |
| Driver Size | 43mm | 35mm | Dual Drivers (9.2mm, Balanced Armature) | 14.2mm |
| Battery Life | 30 Hours, 15 min quick charge for 6 hours playback | 25 Hours, 15 min quick charge for 3 hours playback | 8 Hours, 15 min quick charge for 2 hours playback | 12 Hours, 15 min quick charge for 3 hours playback |
| Noise Cancellation | Adaptive Noise Cancelling | Adaptive Noise Cancelling | N/A | Adaptive Noise Cancelling |
| Finishing Material | Light & Durable Carbon Fiber Arms | Light & Durable Carbon Fiber Arms | Soft, Coated Silicone & Rubber Wires | Soft, Coated Silicone & Rubber Wires |
| Carry Case | Hard shell, zippered carry case | Sleek, protective carry pouch that folds flat | Palm size pouch | Palm size pouch |
Reviews with images
Super sounding phones!
These are pretty awesome sounding headphones! I really like them and recommend them to others for the great sound, great fit and thoughtful design. The noise cancellation is variable and effective.Pros:1. The sound. The sound is great and the best I've heard in a "in-ear" bud type headphone. I have tested Shure, Bang & Olufsen (in ear buds and on ear buds), Plantronics (multiple models), Jabra (both in ear 65t and on ear), Koss, Panasonic, Taotronic, etc. A big range of prices and abilities. These are the best by a margin. The bass is super tight and accurate. The full range of sound is available to you and you just have to equalize it to what you want. I listened to various rock, piano, synth, etc. I was able to hear things that I had not heard before with other headphones. It was like getting a new recording. Wow!2. The design is well thought out. the earpieces fit super well out of the box. If they had not, I have confidence that one of the other sizes and styles would have fit. The obvious attention to how the earpieces fit and sit on the listener likely helps the seal in the ear and therefore the sound a lot. The buttons are all very positive in their feel and can be found by touch rather than having to look. The build quality seems to be great although I have not tortured these yet.3. Accessories. These come with a nice pouch that has a spring opening at the top instead of the normal drawstring. It reminds of some soft glass cases where the end has spring steel pieces in it and you squeeze the outside to open the end, slip your phones in there and then let it go to close. Much better than the drawstring. It also comes with a full set of various earpieces to fit in various sizes of human ear canal, as well as hold them in place during activity. There is also a USB charging cord with USB A at one end and USB C at the other. It is a bit short (~6"), but then it doesn't take up a bunch of space, either.4. Packaging. It has a very nice, giftable box that seems a bit Apple-esque, but is clearly B&W at the same time. If you are giving one of these to someone, it will not be confused with cheap-O headphones.5. Noise cancelling. It is effective and variably controlled. You have these settings: high, auto, low and off. The seal on the earpieces is already so good, that the different effects of the NC for me have not been so noticeable, but I will re-check on my next flight. I would have waited to do this review so I could check in the primary NC environment of the cheap seats in a SWA 737, but I was so excited I wrote the review right away! In general, I am going with the "auto" setting.6. iPhone app. The iPhone app is competent and super responsive on my iPhone 7 plus. There are two versions of the app, so make sure you get the one that goes with the P14.Cons:1. The environmental pass through feature allows you to hear what is going on around you (opposite of NC) when you are walking around and want to hear the car about to run you over. It works, but has issues on my sample. When I first turn it on, there is a lot of scraping and static noise while all the circuits figure out what is going on and apparently recalibrate themselves. After about five or six seconds it all calms down. I have this feature on a set of Plantronics BackBeat Fit 6100 over ear headphones and those do not have all the start up noise. I think it is just supposed to let you hear the non headphone sounds when you turn it on, not make a bunch of other noise. I may consult B&W to see if my sample is doing this right. In any case, I take off one star for this. You'd initially think it was broken if you don't stay with it for the few seconds.2. I would like the vocal cue to tell me the battery level and approximate run time when powering up. This is not an uncommon feature on other phones and I think it is very useful if you have it. There is no reason that I can see that they can't put it on these. Maybe in a future firmware release.Conclusion:Despite the one issue about the noise in pass-through mode, I really, really like these phones. The sound is so superior and the fit is so great I'm excited about them. Seriously, I don't normally get "excited" about headphones. These are great - if you get them you'll know what I mean.
Top reviews from the United States
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Reviewed in the United States on August 7, 2020
Reviewed in the United States on February 12, 2021
Reviewed in the United States on December 10, 2019
Reviewed in the United States on November 30, 2019
The product presentation is fantastic. The packaging and presentation was well thought out. with the form fitted foam and clean organization. With headphones from the grocery store this is less of a thing but comes into major play when the product comes from a company that cares about their product!
The Bowers & Wilkins app is pretty spartan. You can change the noise cancelling options and browse previously connected devices as well as adjust basic things like standby timer, clip sensor and voice prompts.
Turning on the Ambient Pass-Through limits the volume to a very low level. When it is in this mode, adjusting the volume on the headphones or the device will not have any effect. It was quite confusing until I figured out that it needed to be turned off. The sounds of outside audio do not seem to be as active as it is with passthrough on my other headphones.
When connected to my laptop, taking the buds out and connecting them with the magnet will pause the video on streaming services. Separating them will resume the video. Nice touch, but I would wish it would give me a moment of pause to put them back in before resuming. As expected, pairing with my iPhone 8 Plus and MBP 2018 Mojave was trivial.
One of the first things I noticed was how soft and supple the cable connection to the earbuds seems. I was not expecting the flexibility there.
I found the earbuds to be surprisingly comfortable out of the box. They fit into the shape of the ear and press the drivers against the ear canal. Mine really stay put. They include extra ear pieces for individuals with different ears. In my experience it is a really good idea to spend a little time trying these on for the best fit.
It is a small gripe, but the charging cable is less than a foot. The common heights for wall outlets are 12”-18”. With a wall charger, this would not likely reach a nightstand and would just dangle from the wall. I really wish product designers would reconsider these nubby and practically useless cables.
The noise cancellation seems to be passable in my opinion. It fared better against the sound of traffic rather than the rolling and less consistent sound of ocean waves. The headphones being earbuds go a long way to keeping sound out. If I had the option, I would likely trade the noise cancellation for a lower price point.
I am brutal hard on headphones. I do wish there was some basic waterproofing and at least a cover for the USB-C charging port.
The sound is fantastic and crisp. I am very diverse in my listening and swing from piano to Japanese Metal to Hip-Hop and all the way around again. I do not feel like I am missing anything with these headphones.
The Bowers & Wilkins app is pretty spartan. You can change the noise cancelling options and browse previously connected devices as well as adjust basic things like standby timer, clip sensor and voice prompts.
Turning on the Ambient Pass-Through limits the volume to a very low level. When it is in this mode, adjusting the volume on the headphones or the device will not have any effect. It was quite confusing until I figured out that it needed to be turned off. The sounds of outside audio do not seem to be as active as it is with passthrough on my other headphones.
When connected to my laptop, taking the buds out and connecting them with the magnet will pause the video on streaming services. Separating them will resume the video. Nice touch, but I would wish it would give me a moment of pause to put them back in before resuming. As expected, pairing with my iPhone 8 Plus and MBP 2018 Mojave was trivial.
One of the first things I noticed was how soft and supple the cable connection to the earbuds seems. I was not expecting the flexibility there.
I found the earbuds to be surprisingly comfortable out of the box. They fit into the shape of the ear and press the drivers against the ear canal. Mine really stay put. They include extra ear pieces for individuals with different ears. In my experience it is a really good idea to spend a little time trying these on for the best fit.
It is a small gripe, but the charging cable is less than a foot. The common heights for wall outlets are 12”-18”. With a wall charger, this would not likely reach a nightstand and would just dangle from the wall. I really wish product designers would reconsider these nubby and practically useless cables.
The noise cancellation seems to be passable in my opinion. It fared better against the sound of traffic rather than the rolling and less consistent sound of ocean waves. The headphones being earbuds go a long way to keeping sound out. If I had the option, I would likely trade the noise cancellation for a lower price point.
I am brutal hard on headphones. I do wish there was some basic waterproofing and at least a cover for the USB-C charging port.
The sound is fantastic and crisp. I am very diverse in my listening and swing from piano to Japanese Metal to Hip-Hop and all the way around again. I do not feel like I am missing anything with these headphones.
Images in this review
Reviewed in the United States on January 9, 2020
Top reviews from other countries
Iván leonor
Excelentes audífonos con buena cancelación de sonido.
Reviewed in Mexico on March 11, 2022
