If you want a lightweight, ultra-compact transmitter that delivers reliable connectivity for long flights and gym sessions without the bulk, choose Twelve South AirFly SE; if you need advanced audio codecs, real-time status monitoring via an OLED screen, and future-proof Auracast support, choose Avantree Voyager Airplane.
• Twelve South AirFly SE: The undisputed champion of portability with a featherweight design and over 20 hours of battery life, though it lacks a visual display to track connection status or battery levels.
• Avantree Voyager Airplane: A feature-rich powerhouse boasting Bluetooth 5.4, aptX Adaptive low latency, and an OLED display for instant feedback, but it is significantly heavier and more complex to manage.
• Best for the frequent traveler or office commuter: Twelve South AirFly SE offers simplicity where size matters most.
• Best for the audiophile or tech enthusiast: Avantree Voyager Airplane provides superior sound fidelity and modern connectivity standards for those who demand more than just basic function.
The Twelve South AirFly SE is built for the person who values minimalism above all else. If your primary use case involves slipping a device into a pocket or a small bag to use on an airplane, at the gym, or in a hotel room, this adapter is engineered specifically for that lifestyle. Weighing only 13.61 grams, it is so light you might forget it is there until you need it. Its compact dimensions of 0.38 inches by 1.25 inches by 1.75 inches mean it disappears into any carry-on or even a jacket pocket without adding noticeable weight. This is not a gadget that demands attention; it is a tool designed to be forgotten until the moment you plug it into a 3.5mm jack on an older seatback system or a treadmill console.
What truly sets the AirFly SE apart is its focus on endurance and seamless reconnection. With a battery life exceeding 20 hours on a single charge, it can easily handle a transcontinental flight followed by a full day of work without needing a recharge. Even better, the unit can be used while charging via its included USB-C cable, eliminating the anxiety of a dead battery during critical listening moments. The design relies on Bluetooth 5.2 technology, which ensures a stable link to your headphones without the need for constant manual intervention. Once you pair your AirPods or wireless earbuds, the device remembers them, automatically reconnecting the next time you power it on. This "set it and forget it" philosophy makes it ideal for anyone who just wants to listen to music or movies without fiddling with settings.
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 someone who likes to know exactly what percentage of battery remains before leaving home, the AirFly SE will frustrate you because it offers no visual indicators other than a simple LED light that changes color during pairing. Similarly, if you require high-resolution audio codecs like aptX HD for lossless quality, this unit operates on standard SBC and aptX, which may not satisfy audiophiles seeking the absolute best fidelity. It is also strictly limited to connecting one set of headphones at a time. Despite these trade-offs, for the professional who needs a reliable, tiny dongle to convert old wired systems into wireless experiences—especially for office environments where a gaming headset for office use might be too bulky—the AirFly SE hits the sweet spot between performance and discretion.
The Avantree Voyager Airplane is designed for the user who refuses to compromise on technical capabilities. If you are traveling internationally or working in an environment where audio latency and clarity are paramount, this adapter brings a level of sophistication that the simpler market options lack. The standout feature here is the integrated OLED display. Unlike the AirFly SE, which leaves you guessing about your connection status, the Voyager shows you exactly which device is connected, the current battery percentage, and the active audio mode. This transparency is invaluable when you are in a rush to board a plane or setting up a quick call, ensuring you never waste time troubleshooting a silent connection.
Beyond the display, the Voyager distinguishes itself through its cutting-edge Bluetooth 5.4 chipset and support for aptX Adaptive. This technology dynamically adjusts audio quality and latency based on your environment, making it excellent for watching movies on in-flight entertainment systems where lip-sync issues can ruin the experience. Furthermore, it supports Auracast, a newer broadcasting standard that allows you to share audio with multiple compatible receivers simultaneously. While this requires specific hardware, having the option ready for the future is a significant advantage for early adopters. The unit also features firmware upgradability, meaning Avantree can push new features or improvements directly to the device over time, extending its lifespan far beyond typical consumer electronics.
That said, this device comes with a physical and functional cost. At 0.1 kg (roughly 100 grams), it is nearly eight times heavier than the Twelve South alternative. You will definitely feel it in your pocket. Additionally, the inclusion of an OLED screen and advanced processing means the battery management is different; while it has a solid energy content of 1 watt-hour, it does not explicitly promise the same extended 20+ hour run time as the AirFly SE without knowing the exact usage profile. It is also important to note that the Voyager is not compatible with hearing aids or devices that do not have a 3.5mm output, limiting its versatility in certain medical or legacy setups. This product is perfect for the tech-savvy traveler who prioritizes audio precision and data visibility over pure portability.
• Best for portability and travel comfort → Twelve South AirFly SE, due to its negligible weight and ultra-small footprint.
• Best for real-time status monitoring → Avantree Voyager Airplane, thanks to its clear OLED display showing battery and connection details.
• Best for extended battery life → Twelve South AirFly SE, offering a guaranteed 20+ hours of continuous playback.
• Best for high-fidelity audio and low latency → Avantree Voyager Airplane, utilizing aptX Adaptive and Bluetooth 5.4 for superior signal integrity.
• Best for future-proofing → Avantree Voyager Airplane, featuring Auracast support and upgradable firmware.
• Best for simultaneous audio sharing → Avantree Voyager Airplane, which can leverage Auracast to broadcast to multiple receivers.
• Best for simplicity and ease of use → Twelve South AirFly SE, with automatic reconnection and zero learning curve.
• Best for the office worker using a gaming headset for office → Both work, but the Voyager is better for calls requiring clear mic/latency balance if your headset supports it, while the AirFly is better for background noise isolation in open offices.
In my opinion, I would buy the Twelve South AirFly SE for daily office and travel use. The sheer convenience of something that weighs almost nothing and lasts all day is hard to beat. While the Avantree Voyager is technically impressive with its screen and advanced codecs, the extra bulk and the need to constantly check a display add friction to a workflow that should be effortless. For the average professional looking for the best wireless headphones for office scenarios, the AirFly SE simply gets out of the way and lets you work. It is the smarter choice for reliability and comfort, whereas the Voyager feels like over-engineering for a task that mostly just requires a stable connection.
Yes, it works well with most Bluetooth gaming headsets, though it uses standard aptX rather than the lowest-latency modes found in the Voyager. It is a solid choice for general office communication and media consumption.
No, in classic Bluetooth mode, it connects to only one headset at a time. To connect two people to the same audio source, you must use the Auracast mode, which requires both headphones to be Auracast-compatible.
The Twelve South AirFly SE explicitly advertises over 20 hours of battery life, while the Avantree Voyager focuses on efficiency and fast charging with its OLED display, though the specific runtime varies based on the OLED usage.
The Twelve South AirFly SE may work with some hearing aids that support standard Bluetooth pairing, but it is not recommended for those requiring app-based pairing. The Avantree Voyager explicitly states it is not compatible with hearing aids unless they are Auracast-enabled models specifically supported by their HA version.
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