If you want an airplane-ready audio setup with ANC earbuds for school, choose Avantree Relay & Clan; if you need a lightweight clip-on, open-ear design with longer stated total playback, choose TOZO NC3.
For school, the key difference is whether you want a Bluetooth adapter for AUX audio or earbuds that sit open around the ear.
Avantree is the more versatile pick for shared audio sources; TOZO is the more natural fit for students who want an open-ear wearing style.
Avantree Relay & Clan vs TOZO NC3 at a Glance
• TOZO NC3: Its clip-on open-ear design weighs 5.1 g per earbud, with up to 10 hours of playback per charge and up to 40 hours including the case. The trade-off: open-ear listening is a different fit and approach from a conventional in-ear design.
• Choose Avantree if airplane entertainment, TVs, or gym equipment with AUX output are part of your routine.
• Choose TOZO if you want open-ear earbuds with touch controls, call microphones, and a digital-display charging case.
Avantree Relay & Clan is more than a pair of wireless earbuds. The Relay adapter is designed to take audio from an AUX output—such as one on a plane, TV, or piece of gym equipment—and send it to Bluetooth headphones or earbuds. Its included dual 3.5 mm adapter is intended to accommodate different airplane connector arrangements. That combination makes this the more adaptable choice when your listening source is not already Bluetooth-enabled.
The Clan N1 earbuds add hybrid active noise cancellation rated to reduce environmental noise by up to 24 dB. Ambient Mode uses built-in microphones to pass surrounding sound through, which can be useful when you want to hear more of what is happening around you. The case has a display for checking battery level and charging status. aptX Adaptive support and Bluetooth 5.3 are listed, with the codec benefit applying when the connected listening device supports it.
For school, I’d consider Avantree if you regularly use AUX-equipped equipment or want one setup that can serve in more than one setting, from a flight to a TV or gym machine. Its ability to transmit AUX audio is the clearest reason to choose it over TOZO. Skip it if you have no use for an AUX-to-Bluetooth adapter and are specifically looking for a lightweight clip-on, open-ear fit. The supplied details do not state a total playback figure, so battery-life comparisons should not be guessed.
How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-19 · 6 min read · Independent comparison
TOZO NC3 is built around an open-ear clip-on style rather than an in-ear fit. Each earbud is listed at 5.1 g, and the design is intended to sit securely while keeping the ear open. That makes it a distinct option for students who prefer not to have an earbud seated inside the ear canal. Its touch controls are described for managing music and answering or ending calls.
The NC3’s hybrid active noise cancellation is specified at up to 45 dB of noise reduction, and six microphones are listed for calls and ambient-noise reduction. Battery figures are unusually clear: up to 10 hours on a charge, with another 30 hours of playback from the charging case, for up to 40 hours total. The case also has a digital display and supports Type-C charging.
That does not make TOZO automatically suited to every school setting. Open-ear placement may be a better match for someone who wants an ear-open design, but it is not the same choice as a conventional earbud that sits in the ear. Although the product lists hybrid ANC, the supplied details do not explain how that feature behaves with the open-ear construction, so I would not assume it blocks sound like a sealed in-ear fit. Choose TOZO for its clip-on form, listed battery figures, and simple touch controls—not for AUX transmission, which is the defining advantage of Avantree.
• Best for connecting airplane or other AUX audio to Bluetooth → Avantree Relay & Clan. The Relay is made to transmit audio from AUX-output devices, and a dual 3.5 mm adapter is included.
• Best for a clip-on, open-ear fit → TOZO NC3. Its design attaches around the ear rather than relying on an in-ear placement.
• Best for the longest stated total playback → TOZO NC3. The listed figures are up to 10 hours per charge and up to 40 hours with the case.
• Best for a battery-status display → Tie. Both products list a case display, though Avantree describes battery and charging status while TOZO gives its case a digital display.
• Best for a stated noise-reduction figure → TOZO NC3 on paper. It lists up to 45 dB, compared with up to 24 dB for Avantree. Those figures alone do not establish how either will perform in your particular environment.
• Best for ambient listening modes → Avantree Relay & Clan. Its Ambient Mode uses built-in microphones to transmit environmental sound.
• Best for AUX-equipped school, travel, or gym equipment → Avantree Relay & Clan. Its adapter is useful when the source does not send audio over Bluetooth.
• Best for students who want touch controls and six listed microphones → TOZO NC3. Its controls are described for calls and music, and six microphones are specified.
My Verdict
I would choose Avantree Relay & Clan for a student who will actually use its AUX-to-Bluetooth adapter, especially for airplane entertainment or other AUX-equipped devices. That specific flexibility is what separates it from a standard pair of wireless earbuds.
Choose based on how you listen. Avantree suits students who need to send AUX audio to Bluetooth earbuds; TOZO suits those who prefer an open-ear clip-on design and want up to 40 hours of stated playback with its case.
I would not treat either as waterproof based on the information here.
TOZO NC3 has a clip-on open-ear design, but its listed features do not specifically identify a transparency mode. Avantree does list Ambient Mode, which uses microphones to pass environmental sound through, but it is not described as a clip-on design.
TOZO lists hybrid ANC with up to 45 dB of noise reduction; Avantree lists hybrid ANC with up to 24 dB. These are the manufacturers’ stated figures, not a direct comparison of performance in every setting.
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