CMF BY NOTHING Buds 2a are my pick for fiio rr11 earbuds for studying, with ANC and 35.5 hours from the case.
Raycon is the runner-up if you want open-ear listening that leaves you more aware of nearby sounds.
CMF BY NOTHING Buds 2a are my pick for fiio rr11 earbuds for studying, with ANC and 35.5 hours from the case.
fiio rr11 earbuds at a Glance
• CMF BY NOTHING Buds 2a — best for focused study sessions; pick this if you want active noise cancellation, adjustable listening modes, and up to 35.5 hours with the case.
• Raycon Essential Open Ear — best for studying while staying aware of your surroundings; pick this if you prefer an open-ear hook design and up to 36 hours of battery life.
• CMF BY NOTHING Buds 2a — best for study playlists and calls; pick this if you want in-ear ANC, app EQ adjustments, and three included tip sizes.
• Sunffice Single Open Ear — best for one-ear listening and calls; pick this if a single left-ear headset and up to 16 hours of playback fit your routine.
The CMF BY NOTHING Buds 2a are wireless in-ear earbuds with active noise cancellation, touch controls, and a 12.4 mm dynamic driver. The orange version is the first CMF option in this guide, but the practical case for it is the feature mix: ANC for reducing some everyday noise, plus app settings for adjusting how you listen.
For studying, ANC can be useful when nearby conversation or steady background sounds are competing with a lecture or reading. It is not a guarantee of silence, and the buds also offer a transparency mode when you want to hear more of your surroundings. The Nothing X app adds EQ profiles and adjustable ANC, so listeners can tailor the sound and noise control rather than relying on one fixed setup.
Battery life is listed as up to eight hours for the earbuds and 35.5 hours with the case. A five-minute quick charge is stated to provide up to two hours of playback. That combination suits a full day of classes or study blocks with the case available for recharging. Bluetooth 5.4, Google Fast Pair, and Microsoft Quick Switch are also useful if you move between compatible devices.
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-11 · 7 min read · Independent comparison
The trade-off is the sealed in-ear fit. It can help create a more focused listening setup, but some people would rather keep their ears open to a room, family members, or campus announcements. The earbuds include S, M, and L tips, which gives you options for fit, but they are still an in-ear design. In my opinion, this is the strongest choice here when blocking distractions matters more than staying constantly aware.
Raycon’s Essential Open Ear earbuds use an open-ear hook design rather than sitting inside the ear canal. That makes them a different kind of study companion: their main appeal is listening while leaving more awareness of nearby sounds. They are also described as lightweight and intended to stay in place during movement, so they may suit someone who alternates between desk work and walking around.
The open design can make sense in a shared home or office when you want to hear a person speaking to you without taking an earbud out. It may also be helpful when listening while commuting or exercising, though an open-ear design does not provide the same noise-blocking approach as ANC earbuds. For a quiet library or a noisy café, that distinction matters: these are not the pick I would choose when the goal is to reduce outside sound.
Raycon lists up to 36 hours of battery life and Bluetooth 6. Touch controls and a charging case are part of the setup. The long stated battery duration may appeal to someone looking for the best long battery life bluetooth headphones for studying, especially if they do not want to recharge frequently. However, the sheet gives a total battery figure rather than separate earbud and case runtimes.
The main trade-off is focus. Since the design leaves the ear open and has no noise control listed, nearby conversations and room noise remain part of the listening environment. I’d choose Raycon over an in-ear ANC option when situational awareness and an open fit are the priority, not when I need to make a distracting space feel quieter.
The light grey CMF BY NOTHING Buds 2a share the core features of the orange version: in-ear fit, active noise cancellation, a 12.4 mm dynamic driver, Bluetooth 5.4, and app-based customization.
For someone comparing headphones for studying, the useful combination is ANC, transparency mode, and EQ settings through the Nothing X app. You can use ANC when you want fewer distractions, then switch toward transparency when you need to pay attention to people or sounds around you. The four-microphone call setup and stated wind-noise reduction may also be relevant for online classes or calls, though the sheet does not provide a call-time figure.
The battery details are also the same as the orange version: up to eight hours from the earbuds and 35.5 hours with the charging case, with a stated quick-charge boost of up to two hours of playback after five minutes. Included S, M, and L tips give buyers several sizes to try. The case and buds support a compact daily carry, and IP54 is listed for the earbuds.
The same limitation applies here: an in-ear design is not for everyone, and ANC is a different approach from leaving the ear open. The grey version does not add a distinct study feature over the orange one based on the listed specifications. In my view, it is a sensible alternative if you want this feature set and prefer the listed light grey color, but the reasons to choose it are otherwise the same.
Sunffice’s Single Open Ear is a one-ear Bluetooth headset designed for the left ear. That makes it less like a conventional pair of earbuds and more like a single-ear listening and calling option. The open-ear fit leaves the other ear unobstructed, which can be useful if you need to keep listening to the room while taking calls or playing audio.
The headset lists Bluetooth 5.2, touch operation, and compatibility with phones, laptops, and tablets. A 16 mm dynamic driver and a stated microphone noise-cancellation feature are included in the product details. Its single-ear format may suit someone who listens while working through tasks that require frequent conversation, but it is not the most natural fit for stereo music or a study routine that benefits from blocking distractions.
Battery information is not perfectly consistent across the listing: one feature states up to 16 hours of continuous calls and music, while the product information lists 15 hours. I would treat that as a rough indication of extended use rather than assume an exact runtime. The headset is also stated to take about an hour to charge, and it weighs 0.35 ounces according to the feature description.
The biggest trade-off is right in the design: the package is described as one headset for the left ear, not a two-ear set. That may be exactly what a call-focused buyer wants, but it limits the listening experience for music and study audio. I’d consider it for one-ear calls and an open listening setup, not as my main choice for focused study sessions.
I compared the published specifications and features relevant to studying: fit, noise control, battery details, controls, and device connection.
The order is my independent editorial opinion based on those differences.
No brand paid for placement.
The CMF BY NOTHING Buds 2a list active noise cancellation and adjustable ANC settings. The Raycon and Sunffice models use open-ear designs, which keep more of the surrounding environment audible.
Raycon lists up to 36 hours, while both CMF versions list up to 35.5 hours with the case. Sunffice lists up to 16 hours in its feature details, though another product field states 15 hours.
Yes. Raycon uses an open-ear hook design for both ears. Sunffice is a single open-ear headset specifically described for the left ear.
I recommend the CMF BY NOTHING Buds 2a for studying because its in-ear design, ANC, transparency mode, and adjustable EQ give it the most flexible setup for focus and everyday listening.
• SoundMAGIC E11 vs OneOdio Focus A6
• KIDSBAND Headphones vs Kinglucky Clip: Slim on Ear
As an Amazon Associate I earn from qualifying purchases.
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.
When you buy through links on this page, we may earn a commission from qualifying purchases at no extra cost to you.
Amazon and the Amazon logo are trademarks of Amazon or its affiliates. This site is an independent third-party review and is not affiliated with, endorsed by, or sponsored by Amazon or the product brands mentioned.