Bluetooth Headphones High Pitched Noise

The CyberPower UPS started making a high-pitched whining noise. It seemed that the battery had no more life in it so I replaced it with this replacement cartridge from B&H. It is now working again and I hope to get another 5-6 years out of it. It didn't come with a way to recycle the battery so I'm hoping to find somewhere local to dispose of the old battery pack.

Great as Bluetooth headphones, over the ear wired headphones and noise cancelling.

These are the best headphones I’ve ever had! The noise canceling is excellent and the sound quality is well worth it! The only downside is that some older Bluetooth devices may have some issues with connectivity. But any Bluetooth 5.0 is totally fine.

It's rare seeing a pair of headphones that genuinely shine in almost every regard. But with the WH-1000XM3, Sony has created an indisputable winner, a categorically top-notch set of cans whose only shortcoming is the absence of 2.4GHz Wi-Fi connectivity, something we hardly ever see outside of the gaming market. They do have Bluetooth, though, so as long as you have a smart TV, an Nvidia Shield, a gaming laptop, or a Bluetooth-capable motherboard, you should be set for the reclusive world of active noise canceling. Unlike other noise-canceling headphones, the WH-1000XM3 use an unusually silent QN1 HD noise-canceling processor. In our testing, we found it was able to keep out most sounds, even on the crowded New York City subway. The battery does take a hit for this, but you can take solace in the fact that the WH-1000XM3 last 30 hours fully charged. After 10 minutes of being plugged in via USB-C, Sony claims they can deliver pristine high fidelity sound over five hours. And, to top it all off, volume and playback commands are touch-based. Goodbye forever, inline controls. Image 1 of 6

[This review was collected as part of a promotion.] While I've owned my fair share of Bluetooth headphones, none of them have had ANC and, honestly, I wasn't sure if I really needed a noise cancelling feature at all in my headphones. I most often listen to music while at home where it's relatively quiet, anyway. But I was excited anyway to finally try out the noise cancelling capabilities of these Sony WH-1000XM4 headphones, and I couldn't be more impressed. Even when I'm just in my bedroom listening to music, these headphones dull the sound of my noisy air purifier and bring the music into crystal-clear focus. These are great sounding headphones, but it's the ANC and attention to design and detail that really make for an impressive listening experience. With other Bluetooth headphones I've owned, even the ones that had good sound quality, I've always felt like I need to turn up my music really loud in order to properly "feel" it, which was probably terrible for my hearing health. But even at lower volumes, these Sony headphones sound clear and vibrant. The 360 Reality audio capability is really awesome as well. I set it up with my Tidal HiFi subscription and played one of my favorite albums I've heard a hundred times, yet I swear I was hearing details and depth in the music that I had never heard before. And what's even better is that these headphones have all these great features while keeping them super easy to use and super comfortable to wear. I usually wear glasses, and typically glasses plus headphones equals massive headache after more than a few minutes of use, but these Sony headphones put no pressure on my glasses. The headband doesn't dig into the top of my head either, like other headphones often do on me. This level of comfort, in combination with long battery life, means that I can use these for many hours with zero worries, just pure focus on the music. What more could you want?

Probably the best headphones I have ever owned. Very easy to pair over Bluetooth. Sound quality is top notch. The noise cancell ation is excellent. Background noise disappears when wearing these headphones. Highly recommended. I gave profound hearing loss and these headphones with their background noise cancellation are a must have for me to be able to hear speech on my computer or TV.

love the bluetooth and the noise control is phenomenal. the case is so nice and sleek the headphones themselves are a beauty best purchase by far!

[This review was collected as part of a promotion.] This is the perfect 3-in-1 charging stand. I’ve used others in the past that have made a very high pitched sound when charging, but this one is completely silent. It charges my phone, AirPods, and watch extremely fast compared to other charging stands I’ve used. It’s also super sleek and looks great on my nightstand!

Placed inline between dbx zonepro 640 outputs and QSC amplifier that was having a high pitched buzz from dirty 120v electric plug. Buzz gone as soon as these were plugged in

Just a wonderful CYC light. We ordered 5 and unfortunately one of the 5 gave off a hideous high pitched screech when powered on. Contacted customer support and they have sorted everything out as our replacement has just arrived. Overall extremely happy with the product.