The Bose QuietComfort Ultra headphones are great for sound quality and noise cancellation, but they're not without issues when connected to PCs. Here’s what we’ve found about their audio codec support and some connectivity concerns from our research and reviews:

Supported Audio Codecs

According to the manufacturer's specifications, the Bose QuietComfort Ultra headphones support these audio codecs:

• SBC: The standard codec for Bluetooth audio.
• AAC: Often used by Apple devices, offers better sound than SBC.
• aptX: Enhances sound quality by compressing and decompressing audio with less latency.

These codecs aim to balance sound quality and latency, depending on what device you're using.

Connectivity Concerns

Connection Issues: We found that some people have trouble keeping a stable connection to their PCs. This can lead to frequent disconnections and the annoying need to re-pair the headphones regularly.

Sound Quality with Features: While the sound is usually great, some features like Immersive Audio might distort when connected to a PC. It seems these features work better with mobile devices or when used standalone.

Bluetooth Performance: Some users reported issues like crackling noises and audio delays when using Bluetooth with PCs. The headphones might also not switch automatically to a PC without some manual tweaking, which can be a hassle.

Controls and Usability: According to our data, the operational controls—like touch-sensitive areas and buttons—can be less responsive on PCs. This can be problematic for gaming or virtual meetings.

Final Thoughts

In short, while the Bose QuietComfort Ultra headphones do offer excellent sound and noise cancellation, using them with a PC might come with some headaches.

If you’re mainly using these headphones with a computer, it might be worth looking at other options like the Sony WH-1000XM5, which tend to perform better in this area.

So, the Bose QuietComfort Ultra supports SBC, AAC, and aptX codecs, but keep in mind the potential connectivity and usability issues with PCs.

The Bose QuietComfort Ultra Bluetooth Headphones are really comfy for long listening sessions. Our research shows that folks often highlight how plush the ear cushions are and how the lightweight design helps a lot. The headband spreads the weight out evenly, so you don't end up with sore spots on your head or ears after wearing them for a while. They also adjust well to different head sizes and shapes, so you get a snug but comfy fit.

The ear cups are made from synthetic protein leather, which feels really soft and stays comfy even after hours of use, according to the manufacturer.

These headphones also have active noise-canceling, which really cuts down on background noise. This makes listening more enjoyable and less tiring, especially if you're in a noisy place or on a long flight.

Another plus is the long battery life. You get up to 20 hours on a full charge, so you won’t have to recharge them constantly. And if the battery's low, a quick 15-minute charge gives you about 2.5 more hours of use.

Overall, if you're looking for something comfortable for long-term use, the Bose QuietComfort Ultra seems like a great pick.

Yes, you can use the Bose QuietComfort Ultra headphones while they're charging, but there are a couple of things to note. According to the manufacturer's description, these headphones need to be turned on to use features like noise cancellation and audio playback, even when using them in wired mode. This is a common design choice for many Bose models, including the QC35 series.

So, even if you connect them with an audio cable, they still need some battery to work fully, which means you can't use them passively with no battery left.

While they're charging, you can still listen to music or any other audio. According to our research, many people find this feature handy, especially when you want to keep listening without interruptions. Just remember, you'll be connected to the charging cable, so your movements might be a bit restricted.

If uninterrupted use without battery worries is super important to you, you might want to look at other models that offer passive audio operation. For example, the Sennheiser Momentum 4 Wireless is known for great sound quality and can work in passive mode without power, giving you more flexibility.

In short, while needing to have the Bose QuietComfort Ultra turned on, even in wired mode, might seem like a downside, the trade-off might be worth it for the excellent sound and noise-canceling features. If you're okay with keeping an eye on battery life or using them while plugged in, these headphones are still a strong option.