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EARFUN AIR PRO 4+ REVIEW

EarFun Air Pro 4+ Review: The Sub-$100 Audio Revolution with Hybrid Drivers

Introduction: Setting a New Benchmark for Budget Audio

In the fiercely competitive market of True Wireless Stereo (TWS) earbuds, finding a device that balances premium features with an accessible price point is a constant challenge for audiophiles and casual listeners alike. We have spent extensive time analyzing the latest release from EarFun, a brand known for democratizing high-fidelity audio. The EarFun Air Pro 4+ are not just an incremental update; they represent a significant leap forward in engineering, specifically targeting the sub-$100 category with specifications that rival earbuds costing three times as much.

The headline feature of the Air Pro 4+ is undoubtedly its unique acoustic architecture. Moving beyond standard dynamic drivers, EarFun has implemented a hybrid dual-driver layout. This design combines a dynamic driver for impactful bass with a balanced armature driver for crisp highs and mids. Priced at approximately $76, these earbuds boast support for high-resolution codecs like LDAC and aptX Lossless, alongside modern connectivity standards such as LC3 and Auracast. We aim to determine if these specifications translate into real-world performance and whether the Air Pro 4+ truly outclass the competition in the budget sector.

Unboxing and Build Quality: Premium Feel on a Budget

Packaging and Accessories

Upon opening the box, we are greeted with a presentation that defies the $76 price tag. EarFun includes a robust selection of accessories, ensuring a personalized fit for every user. Inside, we find:

The inclusion of high-quality silicone tips is crucial, as a seal is paramount for the performance of hybrid drivers. We recommend experimenting with the sizes to maximize the low-end response provided by the dynamic driver.

Charging Case Ergonomics

The charging case of the Air Pro 4+ features a glossy, dual-tone finish that feels sleek and modern. While the glossy surface is prone to fingerprints, it adds a touch of elegance that distinguishes it from the matte, utilitarian cases often found in this price range. The case is compact enough to fit comfortably in a pocket, though it is slightly wider than some competitors due to the internal driver configuration.

A notable design choice is the elongated stem of the earbuds themselves. This design philosophy aids in balancing the weight distribution and provides a stable fit, particularly for users with larger ears. The magnetic closure of the case is satisfyingly firm, preventing the earbuds from falling out accidentally—a small detail that significantly enhances the daily user experience.

Hybrid Driver Technology: A Deep Dive into Acoustic Performance

The defining characteristic of the EarFun Air Pro 4+ is its dual-driver layout. Most earbuds in the sub-$100 range rely on a single dynamic driver, which attempts to reproduce the entire frequency spectrum. By splitting the workload, EarFun achieves a level of clarity and separation typically reserved for high-end IEMs (In-Ear Monitors).

The 10mm Dynamic Driver

The foundation of the sound signature is a 10mm dynamic driver responsible for the low frequencies. We found that this driver delivers punchy, textured bass that does not bleed into the mids. Whether listening to electronic dance music or hip-hop, the sub-bass frequencies are present and visceral without overwhelming the mix. The physical vibration is noticeable but controlled, a testament to the driver’s quality.

The Balanced Armature (BA) Driver

Handling the midrange and treble is a precision balanced armature. This component excels at reproducing fast transients and delicate details. In our listening tests, vocal tracks sounded forward and intimate, while cymbals and high-hats retained their shimmer without becoming harsh or sibilant. The synergy between the dynamic and BA drivers creates a V-shaped sound signature that is fun and engaging, yet technically proficient.

Soundstage and Imaging

Despite being TWS earbuds, the Air Pro 4+ offers a surprisingly wide soundstage. The separation between instruments is distinct, allowing listeners to pinpoint the location of different elements in a track. This is a significant advantage for gaming and watching movies, where spatial awareness enhances immersion.

Connectivity and Codec Support: The Flagship Suite

In a market where manufacturers often gatekeeper premium codecs behind high prices, EarFun has gone in the opposite direction. The Air Pro 4+ supports a comprehensive suite of audio codecs, ensuring high-quality streaming regardless of your device ecosystem.

LDAC and aptX Lossless

For Android users, LDAC is the gold standard for wireless high-resolution audio. It transmits data at up to 990 kbps, preserving details that are lost in standard SBC compression. We tested the Air Pro 4+ with Tidal Hi-Fi and Qobuz, and the difference was immediately audible. Similarly, aptX Lossless offers CD-quality audio without compression, making these earbuds an excellent choice for audiophiles who refuse to compromise on fidelity.

LC3 and Auracast

Looking toward the future, the Air Pro 4+ supports LC3 (Low Complexity Communication Codec) and Auracast. LC3 offers improved audio quality at lower bitrates, extending battery life without sacrificing sound. Auracast opens up new possibilities for public broadcasting, allowing multiple users to tune into the same audio stream. While still an emerging technology, the inclusion of these features ensures the earbuds remain relevant for years to come.

Bluetooth 5.4 and Stability

Powered by Bluetooth 5.4, the connection is rock-solid. We experienced zero dropouts in urban environments, and the pairing process is instantaneous. The multipoint connection feature allows the earbuds to be connected to two devices simultaneously—such as a laptop and a phone—seamlessly switching audio sources as needed.

Microphone Quality and Call Clarity

A six-microphone layout is integrated into the Air Pro 4+, utilizing environmental noise cancellation (ENC) algorithms. We tested call quality in various scenarios, including quiet offices, windy streets, and crowded cafes.

For remote work and VoIP calls, the Air Pro 4+ performs exceptionally well, eliminating the need for a dedicated headset.

Active Noise Cancellation (ANC) and Transparency Mode

While the hybrid drivers are the star of the show, the ANC capabilities are equally impressive for the price point. EarFun claims a noise reduction depth of up to 45dB, which puts it in direct competition with mid-tier ANC earbuds.

ANC Performance

We found the ANC to be most effective at blocking low-frequency constant noises, such as airplane engines, air conditioning hums, and fans. It handles variable noises like chatter less effectively, but still provides a significant reduction in ambient sound. For commuting or studying in loud environments, the Air Pro 4+ creates a quiet bubble conducive to focus.

Transparency Mode

The transparency mode allows external sounds to pass through the microphones. It is serviceable, though it introduces a slight hiss in very quiet environments. In moderate noise settings, it effectively allows for quick conversations without removing the earbuds.

Battery Life: Endurance for All-Day Listening

Battery life is a critical factor for TWS earbuds, and the Air Pro 4+ does not disappoint. We conducted our tests at approximately 60% volume, using the LDAC codec.

The total battery endurance places the Air Pro 4+ among the top contenders in the market, ensuring they last through a full workday or a long-haul flight without needing a recharge.

Comfort and Fit

The elongated stem design, combined with the lightweight build, makes the Air Pro 4+ comfortable for extended listening sessions. Unlike some in-ear monitors that create pressure buildup, these vented design reduces ear fatigue. The included silicone tips provide a secure seal, which is essential for the bass response and ANC effectiveness. For users with smaller ears, the XS tips work well, though the stem length might still be a concern for some. We recommend trying the fit with the earbuds for a few minutes before committing to a long session.

Companion App and Customization

To unlock the full potential of the Air Pro 4+, users should download the EarFun Audio companion app (available for iOS and Android). The app offers:

The app interface is clean and intuitive, adding significant value to the user experience.

Comparison with Competitors

How does the EarFun Air Pro 4+ stack up against other sub-$100 earbuds?

In almost every metric, the Air Pro 4+ punches well above its weight class.

Detailed Specifications

For the tech-savvy reader, here is a breakdown of the core specifications:

Who Are These Earbuds For?

The EarFun Air Pro 4+ is a versatile performer, but specific groups will benefit most:

  1. Budget Audiophiles: Those seeking high-resolution audio (LDAC) without breaking the bank.
  2. Commuters: The combination of ANC and long battery life is ideal for daily travel.
  3. Gamers and Streamers: Low latency modes (enabled via app) and excellent microphone quality make these suitable for gaming and streaming.
  4. Android Users: To fully utilize the LDAC and aptX Lossless codecs, an Android device is recommended.

Final Verdict: A Benchmark Setter

The EarFun Air Pro 4+ is not just a pair of budget earbuds; it is a statement. It proves that high-fidelity audio, advanced connectivity, and effective noise cancellation can coexist under the $100 mark. The hybrid driver implementation provides a dynamic range and clarity that usually costs significantly more. While the glossy finish collects fingerprints and the stem design may not suit everyone, these are minor trade-offs for the sheer value offered.

We have tested countless earbuds in the sub-$100 category over the years, and the EarFun Air Pro 4+ stands out as one of the most technically proficient and musically enjoyable pairs we have encountered. It earns our highest recommendation for anyone looking to upgrade their audio experience without emptying their wallet.

For those interested in exploring more audio enhancements, check out our curated list of Magisk Modules available at the Magisk Module Repository. We offer tools to optimize your device’s audio processing, ensuring you get the best possible sound from your hardware. Visit us at Magisk Modules to download the latest modules.

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