If you want a dedicated airplane adapter with seamless AUX compatibility and long-lasting battery monitoring, choose Avantree Relay & Clan; if you need superior noise cancellation depth, a foldable travel design, and six-microphone clarity for noisy streets, choose TOZO NC3.
• Avantree Relay & Clan: Its biggest strength is the unique dual-purpose design that acts as both a Bluetooth transmitter for older devices like planes and high-fidelity earbuds with aptX support; its trade-off is a lower noise cancellation rating of 24dB compared to competitors. This pick is for travelers who need to connect to in-flight entertainment systems or gym equipment via AUX without buying separate adapters.
• TOZO NC3: Its biggest strength is the aggressive 45dB hybrid active noise cancellation and six-microphone setup that handles heavy environmental noise and calls better than most; its trade-off is the lack of an integrated transmitter unit for non-Bluetooth legacy devices. This pick is for commuters and students who prioritize total silence and call clarity in chaotic environments over connecting to old audio jacks.
The Avantree Relay & Clan N1 stands out immediately because it solves a specific problem that almost no other earbud does: bridging the gap between modern wireless tech and legacy hardware. If you are a student or traveler who frequently finds themselves on airplanes, in hotel rooms with old TVs, or at gyms with machines that only have a standard 3.5mm headphone jack, this device is a game-changer. The Relay component works with any device that outputs audio via AUX, meaning you can plug it into a plane's seat-back system and still enjoy your own premium sound quality. It includes a dual 3.5mm adapter, ensuring compatibility regardless of whether the connector type is the older thick plug or the newer thin one often found on aircraft.
Beyond its connectivity versatility, the audio transmission capabilities are robust. With aptX-Adaptive codec support, the Relay transmits high-quality audio at low latency, which is crucial if you are watching videos on a TV or playing games where sound needs to match the visuals perfectly. The use of Bluetooth 5.3 technology ensures a stable, reliable connection that rarely drops, even in crowded spaces with lots of wireless interference. However, while the ANC performance is solid, blocking up to 24dB of environmental noise, it is not designed to be the absolute loudest silence machine on the market. You get transparency mode to stay aware of your surroundings, but if your primary goal is to drown out a roaring jet engine or a construction site, there might be a better option available.
You should buy the Avantree Relay & Clan if you value versatility above all else. It is the ideal choice for someone who travels internationally often and hates the hassle of finding power outlets or dealing with incompatible seat connectors. It is also great for home users who want to stream music from an old stereo system wirelessly. However, you should skip this product if you never deal with non-Bluetooth devices and simply want the deepest possible noise isolation in a standalone pair of earbuds. The Orange color adds a distinct style, but the real value lies in the functional bridge it creates between your modern ears and older audio sources.
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-25 · 7 min read · Independent comparison
The TOZO NC3 enters the conversation as a powerhouse for pure audio isolation and communication clarity. If your daily life involves navigating busy subway lines, sitting in a loud classroom, or taking calls while walking down a bustling city street, the specifications here scream "perfect fit." The standout feature is the Hybrid Active Noise Cancellation technology capable of reducing noise by up to 45dB. This is nearly double the reduction of many standard earbuds, meaning the roar of airplane engines, the rumble of subways, and office chatter are effectively minimized. This level of silence allows you to focus on your studies or music without the constant drain of background noise.
Where the TOZO NC3 truly separates itself from the pack is in its microphone array. It features six built-in microphones that detect ambient noise in real time and select the appropriate noise reduction level. This isn't just about hearing your music clearly; it is about being heard clearly. The excellent ENC (Environmental Noise Cancellation) call noise cancellation makes it possible to talk clearly even in noisy streets. Whether you are on a video call for a group project or speaking with a friend during a commute, the three ANC microphones work alongside the call mics to ensure your voice cuts through the chaos. This makes it an exceptional tool for remote learning or professional calls in less-than-ideal acoustic environments.
The physical design also caters heavily to the mobile lifestyle. The foldable and lightweight design allows you to collapse the headphones into carrying bags and travel cases, taking up significantly less space in a backpack. This is a practical detail that matters when you are packing for a week-long trip or trying to fit everything into a small school bag. While it lacks the integrated transmitter of the Avantree, its standalone performance in terms of noise control and call quality is unmatched in this comparison. You should buy this if your priority is maximum silence and crystal-clear voice transmission. You should skip it only if you absolutely require the ability to wirelessly transmit audio from a device that has no Bluetooth capability, as this model relies entirely on Bluetooth connectivity for playback.
• Best for Legacy Device Compatibility → Avantree Relay & Clan, thanks to its AUX input and dual 3.5mm adapter support.
• Best for Deep Noise Isolation → TOZO NC3, offering a massive 45dB reduction versus 24dB on the Relay.
• Best for Call Clarity in Noise → TOZO NC3, utilizing a six-microphone array with advanced ENC for clear conversations.
• Best for Low-Latency Audio → Avantree Relay & Clan, featuring aptX-Adaptive codec support for synchronized sound.
• Best for Travel Portability → TOZO NC3, with its foldable design that shrinks the profile for tight backpacks.
• Best for Battery Monitoring → Avantree Relay & Clan, which includes a dedicated display on the case to check levels easily.
• Best for School Environments → TOZO NC3, due to its superior ability to block out dormitory noise and lecture hall distractions.
• Best for Airplane Entertainment → Avantree Relay & Clan, as it connects directly to in-flight screens without extra dongles.
In my opinion, I would choose the TOZO NC3 for general daily use, especially for a student setting. The 45dB noise cancellation provides a level of focus that is essential for studying in noisy libraries or dorms, and the six-microphone system ensures you won't miss a beat during virtual classes or calls. While the Avantree Relay & Clan is a fascinating piece of engineering for its ability to handle old AV jacks, most modern users rarely encounter those barriers. The TOZO NC3 delivers the core experience—silence and clarity—that defines what good noise-canceling earbuds should do. For anyone looking for waterproof sports earbuds for school or best earphones for school that prioritize performance over niche connectivity, the TOZO NC3 is the stronger contender.
However, the TOZO NC3 is marketed for sports and everyday use, suggesting some protection against sweat, whereas the Avantree focuses on travel and commuting stability.
The TOZO NC3 offers significantly deeper silence with 45dB of reduction, making it far superior for blocking out library chatter or hallway noise compared to the Avantree Relay & Clan's 24dB rating.
No special app is required for basic operation. Both products offer transparency or Ambient Mode as a built-in feature, allowing you to hear your surroundings instantly without additional software configuration.
If your flight requires connecting to the seat's screen, the Avantree Relay & Clan is the only choice because it functions as a Bluetooth transmitter. If you bring your own media, the TOZO NC3 will provide a more immersive experience due to its higher noise cancellation depth.
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