EarFun Air Pro 4 Plus VS Noise Master Buds

In terms of design, the EarFun Air Pro 4 Plus and Noise Master Buds are remarkably similar on paper. Both use an in-ear fit, are fully wireless with no cables or neckband, omit wingtips and RGB lighting, and deliver stereo audio — making them direct structural equivalents in nearly every observable design category.

The only meaningful differentiator here is their IP rating: the EarFun Air Pro 4 Plus carries an IP55 rating, while the Noise Master Buds are rated IPX5. The ″X″ in IPX5 means dust resistance has not been tested or rated, whereas the ″5″ in IP55 confirms the EarFun buds have been verified to resist dust ingress as well. Both handle the same level of water jet resistance (the second digit ″5″ is identical), so in wet conditions they perform equally — but in dusty environments like construction sites, dry trails, or sandy beaches, the EarFun's dust certification provides a measurable, real-world advantage.

Edge: EarFun Air Pro 4 Plus. Its full IP55 rating edges out the Noise Master Buds' IPX5 by adding verified dust protection — a subtle but practical advantage for users who wear earbuds in varied or outdoor environments.

Both earbuds share a solid foundation for sound quality: ANC and passive noise reduction are present on both, and each covers the full standard human hearing range of 20 Hz to 20,000 Hz. Neither relies on a neodymium magnet, and neither supports Dolby Atmos or Dirac Virtuo, so those factors cancel out entirely.

Where the specs diverge is driver size and spatial audio. The Noise Master Buds pack a notably larger 12.4 mm driver compared to the EarFun Air Pro 4 Plus's 10 mm driver. A bigger driver membrane generally moves more air, which can translate to fuller bass presence and a wider perceived soundstage — though driver size alone does not guarantee superior tuning. More concretely, the Noise Master Buds also support spatial audio, a feature entirely absent on the EarFun. Spatial audio processes sound to simulate a three-dimensional listening environment, making it particularly valuable for movies, gaming, and immersive music formats.

Edge: Noise Master Buds. The combination of a larger 12.4 mm driver and spatial audio support gives it a meaningful advantage in this category. Users who prioritize immersive, room-filling sound will find more on offer here than with the EarFun Air Pro 4 Plus.

Battery performance is where the EarFun Air Pro 4 Plus pulls ahead decisively. Its per-earbud battery life of 12 hours is exactly double the Noise Master Buds' 6 hours — a gap that is genuinely significant in daily use. Six hours is sufficient for a standard workday commute or a gym session, but falls short for long-haul flights or extended work-from-home listening without reaching for the case. Twelve hours, by contrast, comfortably covers most all-day use scenarios on a single charge.

The charging case totals tell a similar story: the EarFun case extends total playback to 42 hours versus 38 hours for the Noise Master Buds — a smaller gap, but still an advantage. Both charge in an identical 1.5 hours, so refill speed is a non-factor. The more practical differentiator is wireless charging, which the EarFun supports and the Noise Master Buds do not. Being able to drop the case on a Qi pad rather than hunting for a cable is a quality-of-life convenience that frequent travelers and desk workers will appreciate.

Edge: EarFun Air Pro 4 Plus — and it is not particularly close. The combination of twice the per-charge earbud runtime, a higher total system battery, and wireless charging support makes it the stronger pick for anyone who prioritizes staying unplugged as long as possible.

The connectivity gap between these two earbuds is substantial. The EarFun Air Pro 4 Plus runs on Bluetooth 6, the latest generation, while the Noise Master Buds operate on Bluetooth 5.3. Newer Bluetooth versions bring improvements in connection stability, interference handling, and power efficiency — so in crowded wireless environments like offices or transit hubs, the EarFun holds a structural advantage before codec support even enters the picture.

On the audio codec front, the EarFun's roster is remarkably deep: LDAC, aptX Adaptive, and aptX Lossless all point to a device engineered for high-resolution wireless audio. LDAC alone transmits up to three times more data than standard Bluetooth audio, and aptX Lossless can deliver CD-quality audio wirelessly when conditions allow. The Noise Master Buds counter with LDHC — a high-resolution codec capable of up to 900 kbps — which is credible, but represents a narrower ecosystem compared to the EarFun's multi-codec flexibility. The EarFun also adds Bluetooth LE Audio and Auracast, enabling broadcast audio sharing to multiple listeners simultaneously — a genuinely forward-looking feature the Noise Master Buds lack entirely. Fast pairing further streamlines the EarFun's day-to-day experience.

Edge: EarFun Air Pro 4 Plus, and convincingly so. Its newer Bluetooth version, richer high-resolution codec support, LE Audio, Auracast, and fast pairing make it the far more future-proof and versatile option for users who demand the most from their wireless connection.

Across every single feature in this category, the EarFun Air Pro 4 Plus and Noise Master Buds are an exact match. Both offer ambient sound mode, in-ear detection, fast charging, and 2-device multipoint connectivity — a well-rounded set of conveniences that covers the practical needs of most users. In-ear detection automatically pauses playback when an earbud is removed, multipoint lets both devices stay connected to two sources simultaneously, and ambient mode allows environmental sounds through without taking the buds out — all features that meaningfully improve everyday usability.

Tied — no advantage to either product. When spec parity is this complete, the features category cannot be used as a tiebreaker. Prospective buyers should weigh the differentiators found in other spec groups — such as sound quality, battery, or connectivity — to guide their decision here.

Microphone hardware is identical across both earbuds. Each packs 6 microphones and noise-canceling mic technology — a configuration typically found in premium-tier earbuds designed to handle call clarity in noisy environments. More microphones enable beamforming and multi-point noise filtering, which helps isolate the speaker's voice from background sounds like wind, traffic, or office chatter.

Tied — neither product holds an advantage here. With the same mic count and the same noise-canceling capability on both sides, call and voice quality cannot be a differentiator based on the available data. Users prioritizing hands-free call performance should look to other spec groups to distinguish between the two.