If you want immersive, all-day listening with active noise cancellation for focused study sessions, choose EarFun Air Pro 3; if you need a portable adapter to stream audio from an airplane seat or TV to your existing wireless headphones, choose Avantree Relay.
• EarFun Air Pro 3: Offers deep bass, 40 hours of total playtime, and advanced Qualcomm aptX Adaptive audio for high-fidelity sound; the trade-off is that it is an in-ear device designed for personal isolation rather than shared listening. This pick is for students and travelers who need a complete, standalone audio experience with long battery life.
• Avantree Relay: Provides a versatile bridge between non-Bluetooth sources like planes and TVs and any pair of Bluetooth headphones, supporting dual connections for sharing; the trade-off is that it is not a set of earbuds itself but an external transmitter dongle requiring its own power management. This pick is for frequent flyers and home theater enthusiasts who already own headphones and need a connectivity solution.
The EarFun Air Pro 3 is engineered as a self-contained, high-performance audio system built around the latest Qualcomm QCC3071 chipset. This isn't just a pair of earbuds; it is a dedicated listening platform designed to handle complex audio environments with precision. The inclusion of 11mm wool composite dynamic drivers means the sound profile is capable of delivering moving bass, clear mids, and crisp highs without the distortion often found in budget TWS models. For anyone looking for the best over ear headphones for study (or rather, the best in-ear alternative), this driver size and material combination suggests a rich, detailed soundscape that can keep you engaged for hours without fatigue.
What makes this product particularly compelling for academic work is the seamless integration of connectivity and battery endurance. With Bluetooth 5.3 support, these earbuds maintain a stable connection up to 10 meters away, allowing you to move freely between rooms while studying. The multipoint connection feature is a game-changer for multitasking students; you can switch effortlessly between a laptop for research and a phone for communication without manually disconnecting and reconnecting. Furthermore, the 55ms low latency ensures that video lectures or language learning apps remain perfectly synced with the audio, eliminating the distracting lag that ruins immersion.
Battery life is where this model truly separates itself from the competition. Whether you are pulling an all-nighter or traveling across time zones, the ability to rely on such extended power means you rarely have to hunt for an outlet. Additionally, the design incorporates six environmental noise cancellation microphones powered by Qualcomm cVc 8.0 technology. This setup actively picks up your voice while blocking wind and background noise, ensuring crystal-clear call quality during virtual office hours or group study calls, even in noisy coffee shops or dormitories.
However, there are specific scenarios where this product might not be the right fit. If your primary goal is to share audio with a friend sitting next to you, the single-user design limits you to one listener per earbud unless you purchase a second pair. While the memory foam earpads and silicone construction offer a safe, cozy wearing experience suitable for adults and children alike, the in-ear form factor does not suit everyone. Some users find open-ear designs more comfortable for long-term wear, and the sealed nature of these buds provides passive isolation that might feel too restrictive for those who prefer ambient awareness. But for pure focus and audio fidelity, the EarFun Air Pro 3 is a powerhouse.
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-26 · 7 min read · Independent comparison
The Avantree Relay serves a completely different purpose in the ecosystem of personal audio gear. It is not a set of headphones or earbuds you wear directly; instead, it is a robust Bluetooth 5.3 adapter designed to breathe new life into older or non-Bluetooth audio sources. Its core function is to act as a universal translator, taking analog audio signals from devices equipped with a 3.5mm AUX jack—such as airplane entertainment systems, gym equipment, or older televisions—and converting them into a high-quality digital stream for your favorite wireless headphones. If you frequently fly and are tired of using wired headphones provided by airlines, this device is the solution you have been waiting for.
One of the most distinct advantages of the Avantree Relay is its dual-device capability. The hardware allows you to connect up to two Bluetooth receivers simultaneously, meaning you can pair your headphones with a partner's AirPods or another set of earbuds and share the same movie or flight entertainment. The intuitive LED indicators make managing these connections simple, showing you exactly which devices are paired and the status of the battery. This feature transforms a solitary activity into a shared experience, making long flights or movie nights much more enjoyable without needing expensive proprietary airline equipment.
Audio quality remains a priority even in a small dongle form factor. By supporting aptX Adaptive and aptX Low Latency codecs, the Relay ensures that the audio transmitted to your headphones retains high fidelity and minimal delay. This is crucial for watching movies on a plane or TV where lip-sync issues can ruin the experience. The device also features easy physical controls for volume adjustment, pairing, and clearing history, giving you direct command over your audio environment without fumbling with a phone app. With a battery life of up to 20 hours, it is substantial enough to last through multiple long-haul flights, and the ability to charge and use the unit simultaneously ensures you never miss a beat if the battery runs low.
This product is strictly for those who already own a high-quality pair of Bluetooth headphones or earbuds and need a way to use them in environments that lack native wireless support. It is not a standalone listening device; you cannot "buy" the sound quality of the Relay itself—it depends entirely on the headphones you plug into it. If you do not already own a compatible pair of wireless headphones, this device will not provide you with a listening experience on its own. Additionally, while it is excellent for travel, it is less relevant for someone looking for a primary pair of earbuds for daily commuting or gym workouts, as it requires a constant connection to an audio source via the 3.5mm jack.
• Best for Battery Life → EarFun Air Pro 3, offering 40 hours of continuous playback compared to the Relay's 20-hour limit.
• Best for Travel Audio Sharing → Avantree Relay, as it supports connecting two separate headphone pairs simultaneously for in-flight entertainment.
• Best for Study Focus → EarFun Air Pro 3, providing active noise cancellation capabilities and a secure in-ear fit ideal for concentration.
• Best for Older AV Equipment → Avantree Relay, specifically designed to add Bluetooth functionality to any device with a 3.5mm AUX port.
• Best for Call Quality → EarFun Air Pro 3, featuring 6 microphones and cVc 8.0 technology for superior voice clarity.
• Best Value for Complete Setup → EarFun Air Pro 3, as it includes both the transmitter and receiver in one package, whereas the Relay requires you to own headphones separately.
• Best for Low Latency Gaming/Video → Both support aptX Adaptive, but the EarFun Air Pro 3 has a confirmed 55ms latency optimized for in-ear synchronization.
• Best for Durability and Safety → EarFun Air Pro 3, built with kids-friendly materials and volume limiting to protect hearing during long study sessions.
After weighing the specifications and intended use cases, I would buy the EarFun Air Pro 3 for my own needs, primarily because it functions as a complete audio solution rather than an accessory. For a student or anyone seeking the best clip on earbuds for study (or in this case, the best in-ear option for deep focus), the combination of 40-hour battery life, multipoint connectivity, and high-fidelity drivers offers a level of independence that a dongle simply cannot match. While the Avantree Relay is a clever tool for travelers who need to bypass airplane jacks, it relies on a separate set of headphones and offers less versatility for daily use. If your goal is to create a distraction-free zone for learning or working, the EarFun Air Pro 3 delivers the comprehensive performance required to get the job done.
Yes, the design features soft memory foam earpads and silicone tips that ensure a safe and cozy wearing experience, supported by a 40-hour battery life that eliminates charging interruptions.
The Relay works with any device that outputs audio via AUX, including planes, and the included dual 3.5mm adapters make it usable on any flight regardless of connector type.
They are made of kids-friendly materials compliant with RoHS2.0 and FCC standards, and they include a volume limit of 85/94dB to prevent hearing damage during use.
The EarFun Air Pro 3 explicitly lists a 55ms latency, ensuring movies and games stay in sync, while the Avantree Relay utilizes aptX Low Latency to achieve similar results when paired with compatible headphones.
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.