If you want a dedicated transmitter that lets you wirelessly pair your existing wireless headphones to any 3.5mm jack with aptX Low Latency support, choose Twelve South AirFly Pro; if you need a complete over-ear ANC headphone set with a matching plug-and-play adapter and 45-hour battery life for long-haul travel, choose Avantalk Avantree Sky Eon. This decision isn't about which brand has more fans or which one is trending; it comes down to whether you already own a great pair of wireless headphones for dj work or if you are looking for an all-in-one solution designed specifically for the chaotic audio environment of air travel and extended listening sessions.
• Twelve South AirFly Pro: Its biggest strength is the versatility of dual-mode TX/RX functionality and aptX Low Latency codec support for lag-free syncing; its trade-off is that it requires you to already own compatible Bluetooth headphones and lacks active noise cancellation.
• Avantalk Avantree Sky Eon: Its biggest strength is the inclusion of hybrid active noise cancellation, plush over-ear comfort, and a massive 45-hour battery life right out of the box; its trade-off is the heavier form factor and lack of aptX Low Latency for precise audio timing.
• The Verdict: The AirFly Pro is the ideal pick for DJs and audiophiles who need low-latency transmission and portability, while the Sky Eon is the clear choice for travelers prioritizing silence, comfort, and an all-in-one package.
The Twelve South AirFly Pro is built for people who refuse to be tethered by wires but still demand high-fidelity audio performance from their current gear. At just 18.14 grams, this device is practically invisible in your pocket, yet it packs a punch with Bluetooth 5.0 connectivity and support for aptX Low Latency, aptX, and SBC codecs. This specific focus on audio codecs is critical for anyone who needs to sync sound perfectly with video or beat-matching scenarios, making it a compelling tool for those using best in ear headphones for dj sets where timing is everything.
You should buy this unit if you already have a favorite pair of wireless earbuds or headphones that you love but find useless on airplanes, gym machines, or hotel TVs because they only have a wired input. The AirFly Pro bridges that gap instantly. It operates in two distinct modes: Transmit (TX) mode sends audio from a 3.5mm source to your Bluetooth headphones, and Receive (RX) mode takes Bluetooth audio from your phone and outputs it through a wired speaker system. This duality means you aren't stuck with a single-use gadget; you can use it to connect to non-Bluetooth car stereos or boat speakers, giving you freedom across multiple environments.
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
However, this product is not for everyone. If you are looking for a pair of headphones that actively block out the roar of a jet engine or the hum of a busy gym, the AirFly Pro will not help you there. It is a pure transmitter. You must bring your own headphones, and the device itself does not offer any active noise cancellation features. Additionally, while it supports pairing two sets of headphones simultaneously, the initial pairing process can take up to 90 seconds before it settles into its memory mode. If you prioritize absolute silence and don't mind carrying a larger, heavier headset, this tiny dongle might feel like a compromise rather than a complete solution.
The Avantalk Avantree Sky Eon is engineered for the traveler who wants a "plug-and-play" experience without the hassle of managing separate devices. This isn't just an adapter; it is a full ecosystem consisting of over-ear headphones and a dedicated wireless transmitter. The standout feature here is the Hybrid Active Noise Cancellation (ANC), which allows you to listen undisturbed in noisy environments like a flight cabin or a loud airport terminal. For a DJ or musician traveling between gigs, having a foldable gaming headset for dj setup that also doubles as a premium travel companion offers a level of isolation that small in-ear monitors simply cannot match.
Comfort is a major selling point for the Sky Eon. With spacious, plush earpads and an accommodating headband, it is designed for individuals with larger ears and heads who often suffer from pressure points during long sessions. The design philosophy here prioritizes endurance, boasting a battery life of up to 45 hours for the headphones themselves. This means you can fly across continents without worrying about recharging mid-trip. The included transmitter provides another 20 hours of playtime, ensuring that even the longest layovers are covered. Furthermore, the ability to connect to two devices simultaneously via multipoint technology allows you to seamlessly switch between your laptop and phone, a feature that adds significant utility for professionals on the go.
This product is best suited for those who do not currently own a high-quality pair of wireless headphones or who prefer the immersive soundstage of over-ear drivers. The 40mm dynamic drivers deliver powerful audio with deeper low-end frequencies and a wider sound range, making it excellent for movies, music, and calls. However, users should note that when using the included transmitter, microphone functionality is disabled. While the headphones have a mic for direct Bluetooth calls, the wireless adapter setup sacrifices call capability to maintain that seamless audio stream. If you need to conduct conference calls directly through the transmitter connection, this limitation could be a dealbreaker, but for pure entertainment and focus, the Sky Eon excels.
• Best for Battery Life → Avantalk Avantree Sky Eon: With 45 hours of playback on the headphones alone, it crushes the AirFly Pro's 25-hour limit, making it superior for multi-day trips.
• Best for Audio Latency → Twelve South AirFly Pro: The inclusion of aptX Low Latency ensures synchronized audio, which is vital for video editing or beat-matching, whereas the Sky Eon focuses on standard Bluetooth audio.
• Best for Noise Isolation → Avantalk Avantree Sky Eon: The hybrid ANC technology actively cancels external noise, a feature entirely absent from the passive-only AirFly Pro.
• Best for Portability & Weight → Twelve South AirFly Pro: Weighing less than 20 grams, it fits in a keychain holder, while the Sky Eon is a bulkier over-ear setup weighing significantly more.
• Best for Versatility of Use → Twelve South AirFly Pro: Its ability to switch between TX and RX modes allows it to serve as both a transmitter and a receiver for different types of legacy audio equipment.
• Best for Comfort During Long Flights → Avantalk Avantree Sky Eon: The plush earpads and ergonomic design reduce fatigue, whereas the AirFly Pro relies on whatever earbuds you happen to be wearing.
• Best for Existing Gear Owners → Twelve South AirFly Pro: If you already have premium headphones, this saves you from buying a new pair just to use them on a plane.
• Best for All-in-One Convenience → Avantalk Avantree Sky Eon: You get the headphones, the adapter, and the case in one purchase, eliminating the need to hunt for compatible accessories.
After weighing the specs, design philosophies, and real-world use cases presented in these data sheets, I would personally buy the Avantalk Avantree Sky Eon for my travels. The combination of hybrid active noise cancellation, 45-hour battery life, and the sheer comfort of the over-ear design makes it the superior choice for anyone spending significant time in transit. For a professional who might be working on a plane or needing to block out distractions, the ability to isolate sound without relying on a separate device is invaluable. While the Twelve South AirFly Pro is a marvel of engineering for its size and latency performance, it feels incomplete without a quality pair of headphones attached. The Sky Eon solves the problem holistically, offering a dedicated wireless headphones for dj experience that also functions flawlessly as a travel companion. If your primary goal is to create a quiet, immersive bubble wherever you go, the Sky Eon is the winner.
The AirFly Pro is designed primarily for audio transmission and reception; it does not mention microphone capabilities or call routing in its specifications, focusing instead on media streaming.
The headphones offer up to 45 hours of playtime, while the included wireless transmitter provides up to 20 hours of battery life on a single charge.
No, at 18.14 grams, it is extremely lightweight and includes a keychain holder, making it far less intrusive than over-ear headphones for daily carry.
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