If you want immersive over-ear sound, active noise cancellation, and long listening time for Xbox, choose CMF BY NOTHING Headphone Pro Active; if you need open-ear headphones for staying aware of your surroundings while moving, choose Rulbovs E12. I’d pick the CMF for general listening and the E12 for outdoor activity, but neither spec sheet establishes Xbox-specific gaming support.
CMF BY NOTHING Headphone Pro Active vs Rulbovs E12 at a Glance
• Rulbovs E12: Open-ear hooks, IP65 dust and water resistance, and up to 10 hours of listening on a charge. The trade-off is no noise control and no headphone jack.
• CMF fits listeners who want a more enclosed, customizable setup for music, travel, or a home gaming session.
• Rulbovs fits people who want to hear their surroundings while exercising and value its built-in camera and AI features.
The CMF BY NOTHING Headphone Pro Active is an over-ear Bluetooth headset built around listening comfort and control. Its 40 mm dynamic drivers, adaptive active noise cancellation, and Transparency Mode point toward a familiar use case: putting on headphones to focus on music, a podcast, or a call, then switching to ambient sound when you need more awareness. ANC is rated up to 40 dB, though that figure alone does not tell you how much noise it will reduce in every setting.
There is room to tailor the sound through the Nothing X app, including a custom EQ and a personal sound profile. CMF also lists spatial audio and concert and cinema modes, plus LDAC and dual Hi-Res certification. Those features make this the more fully specified choice for someone who wants a feature-rich listening setup, rather than a minimal pair of workout headphones. Bluetooth 5.4 is listed, and the headset can also connect through a 3.5 mm jack.
Battery life is a major distinction: CMF lists up to 50 hours of wireless playback with ANC on and up to 100 hours with ANC off. The headphones weigh 283 g and use memory foam earpads. That combination may suit long listening sessions, although an over-ear design is less open than the E12 and will not suit someone who wants to keep both ears unobstructed.
How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-22 · 7 min read · Independent comparison
Who should skip it: Skip the CMF if your priority is an open-ear fit, IP65 protection, or a built-in camera.
The Rulbovs E12 takes a different approach. Its open-ear design sits around the outer ear rather than entering the ear canal, using curved hooks and silicone. That can be a practical fit for walking, cycling, or working out when hearing nearby sounds matters. It is not designed to shut out a busy environment: the product information lists no noise control.
The E12 is rated IP65 for dust and water resistance, and battery life is listed as up to 10 hours. It uses Bluetooth 6 and has button, touch, and voice controls. Those traits fit an active routine better than a quiet, immersive listening session. Unlike the CMF, it has no headphone jack, and its 10-hour stated battery life is much shorter than the CMF’s figures. The product information calls it open-ear air-conduction headphones, so I would not treat it as a conventional noise-isolating or over-ear gaming headset.
Who should skip it: Skip the E12 if you want active noise cancellation, an over-ear fit, or a wired 3.5 mm connection.
• Best for a longer stated battery life → CMF BY NOTHING Headphone Pro Active. It lists up to 50 hours with ANC on and up to 100 hours with ANC off; the E12 lists up to 10 hours.
• Best for staying aware outdoors → Rulbovs E12. Its open-ear design leaves the ear canal unobstructed, while the CMF is an over-ear headset with noise control.
• Best for reducing surrounding noise → CMF BY NOTHING Headphone Pro Active. It offers adaptive ANC up to 40 dB and a Transparency Mode. The E12 has no noise-control feature listed.
• Best for exercise in dusty or damp conditions → Rulbovs E12. Its IP65 rating is the only dust- and water-resistance rating provided for these two products.
• Best for app-based sound adjustments → CMF BY NOTHING Headphone Pro Active. The Nothing X app supports custom EQ and a personal sound profile.
• Best if you want a camera on your headphones → Rulbovs E12. It includes an 8 MP camera, 1080P recording, EIS, and built-in storage.
• Best for a wired option → CMF BY NOTHING Headphone Pro Active. It has a 3.5 mm jack; the E12 has no headphone jack.
• Best for Xbox gaming → CMF BY NOTHING Headphone Pro Active, with a qualification. Its over-ear design and 3.5 mm connection make it the more plausible pick for a home gaming setup, but neither sheet confirms Xbox compatibility. The CMF’s listed 120-millisecond latency is also worth considering for games where timing matters.
Before choosing headphones for Xbox, separate general listening features from confirmed console support. The CMF lists Bluetooth, LDAC, and a 3.5 mm jack, but it does not name Xbox compatibility or explain whether its wireless connection works with an Xbox console. The E12 lists Bluetooth and no headphone jack, but likewise does not specify Xbox support. Check the connection method your Xbox setup requires rather than assuming that any Bluetooth headset will pair directly.
Sound design matters, too. The CMF is an over-ear option with ANC, app-based EQ, and a Transparency Mode. Those are useful distinctions if you want to concentrate on a game or switch back to hearing your surroundings. The E12’s open-ear design instead prioritizes awareness and activity; it is a less natural match for someone seeking noise reduction or an enclosed gaming feel.
Battery figures are not identical testing conditions. CMF gives separate maximums with ANC on and off, while Rulbovs lists up to 10 hours on a charge. Consider how long you typically listen and whether you would use ANC, rather than comparing only the largest number. If the current price affects your decision, check the current price on Amazon using the page’s button; I’m not quoting one here.
I’d choose the CMF BY NOTHING Headphone Pro Active for Xbox-related listening because its over-ear design, 3.5 mm jack, ANC, and much longer stated battery life make it the more versatile option on paper. I would still verify the connection requirements for my specific Xbox setup, since the specifications do not confirm console compatibility and list 120 milliseconds of latency. For someone who wants open ears, IP65 protection, and a camera for outdoor use, the Rulbovs E12 makes more sense. But for my own gaming headphones for Xbox, I’d lean CMF.
Neither product’s supplied specifications explicitly confirm Xbox compatibility. The CMF offers Bluetooth and a 3.5 mm jack; the E12 is Bluetooth-only and has no headphone jack. Confirm that your console and chosen connection method are compatible before buying.
On the listed features, I’d favor the CMF for a home gaming setup: it is over-ear and has a 3.5 mm jack, while the E12 is open-ear and wireless-only. However, CMF lists 120 milliseconds of audio latency, and neither product sheet confirms Xbox support. For timing-sensitive games, verify the connection and latency requirements.
The E12 is the more activity-focused design. It uses open-ear hooks, is rated IP65 for dust and water resistance, and is described as suitable for activities such as cycling and workouts. The CMF is over-ear and offers noise control, which is a different priority.
CMF lists up to 50 hours with ANC on and up to 100 hours with ANC off, compared with up to 10 hours for the E12. It also offers adaptive ANC up to 40 dB and Transparency Mode. The E12 has no noise control listed, so it is the choice for keeping ears open rather than blocking surrounding sound.
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