We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-05 · 6 min read · Independent comparison
If you want a lightweight, sweat-and-rain-proof pair of LED digital display earbuds that stays comfortable through a long shift, choose Aoslen Earbuds; if you need serious active noise cancelling to kill constant loud drone on a construction work site, choose TOZO NC9. I'll break down exactly why each one earns its spot below.
• Aoslen's biggest strength: featherweight 3-gram buds with an IPX7 waterproof rating, a 42-hour charging case, and a 10-minute quick charge that buys an hour of playback — a real work-site convenience.
• Aoslen's biggest trade-off: no active noise cancelling at all, so it won't suppress the roar of machinery.
• TOZO NC9's biggest strength: hybrid active noise cancelling rated to a 45dB reduction depth, plus a Transparent Mode when you need to hear what's going on around you.
• TOZO NC9's biggest trade-off: bigger, feature-heavy design with a companion app and EQ tinkering — more to manage than a plug-and-play pair.
• Both share the basics: Bluetooth 5.3, touch controls, an LED digital display on the case, and dynamic drivers.
• Bottom line: pick Aoslen for lightweight all-day wear and waterproofing; pick TOZO NC9 for noise cancelling and call clarity.
The Aoslen A68Pro is built around one idea: keep it light, keep it simple, keep it running. Each bud weighs roughly 3 grams, which matters more than it sounds. On a job where you're wearing earbuds for hours, a few extra grams per ear starts to add up by mid-afternoon. Aoslen leans into comfort and endurance instead of feature stacking.
The battery story is the standout. You get around 8 hours per charge and a total of about 42 hours with the case. The USB-C quick charge is the practical part — 10 minutes in the case gets you an hour of music. If you forgot to charge overnight, that's a genuinely useful buffer. The case also carries an LED digital display so you can see the remaining case power and charging status without guessing.
Audio and fit are straightforward. A 13mm dynamic driver covers a 20Hz–20,000Hz range and delivers stereo sound with deep bass and clear treble, and the in-ear seal physically blocks some ambient noise — not active cancellation, just passive isolation. You get three ear-tip sizes (S/M/L), which helps you dial in a secure seal, and the IPX7 rating means sweat and rain won't kill them. Bluetooth 5.3 handles pairing, and after the first setup the buds auto-connect when you open the case. Touch controls cover play/pause, track skipping, volume, and calls, and each bud can run independently in single-channel mode.
Who should buy it: anyone who wants a light, low-fuss pair for workouts, sports, commutes, or long physical shifts where waterproofing and battery life beat fancy features. Who should skip it: if your top priority is silencing a constant wall of external noise, Aoslen won't do that — its noise control field is literally "None." That's an honest limitation, not a flaw.
The TOZO NC9 is the opposite philosophy: pack in the features and let you tune everything. Its headline is hybrid active noise cancelling with a rated maximum reduction depth of 45dB. That's the kind of spec that matters when you're standing next to something loud and constant and you want it to disappear.
It also brings a Transparent Mode, which flips the script — instead of blocking sound, it pipes your surroundings back in. On a work site, that's a safety feature as much as a convenience, because you can catch a warning shout or a backup alarm without pulling a bud out. Between full cancelling and full transparency, you get real control over how much of the world you let in.
Call quality is the second pillar. The NC9 uses a 6-microphone array with ENC (environmental noise reduction) to filter background sound during calls. If you take calls in noisy places, that's a meaningful upgrade over a basic single-mic setup. Audio runs through 10mm dynamic drivers with TOZO's OrigX Acoustic 2.0 tuning, aimed at deep bass and clean clarity. For battery, TOZO states up to 59 hours, and the case includes an LED digital display like the Aoslen.
Comfort gets attention too, with six sizes of replaceable earcaps — double what Aoslen offers — which helps if standard tips never quite seal right. It also supports 32 EQs through an app, so you can shape the sound rather than accept it as-is. The trade-off is complexity: an app, six tip options, and a larger feature set mean more setup and more to think about. If you want zero fuss, that's friction.
Side-by-Side: Which Should You Choose?
• Best for lightweight all-day comfort → Aoslen Earbuds (about 3 grams per bud).
• Best for blocking loud machinery → TOZO NC9 (45dB hybrid active noise cancelling).
• Best for hearing your surroundings on site → TOZO NC9 (Transparent Mode).
• Best for quick top-up charging → Aoslen Earbuds (10 minutes for about an hour of playback).
• Best for call clarity in noise → TOZO NC9 (6 mics with ENC).
• Best for fit options → TOZO NC9 (six earcap sizes vs. Aoslen's three).
• Best for set-and-forget simplicity → Aoslen Earbuds (auto-pair on opening the case, no app required).
• Best for sound customization → TOZO NC9 (32 EQs via app).
• Best for sweat and rain resistance → Aoslen Earbuds (IPX7), though TOZO also lists IPX8 waterproofing.
In my opinion, the TOZO NC9 is the pair I'd buy for construction work — the 45dB hybrid noise cancelling and Transparent Mode are exactly the two tools you want on a loud, unpredictable job site, and the 6-mic call setup keeps you audible. If your priority is a featherweight, waterproof, no-fuss pair you'll forget you're wearing, I'd take the Aoslen Earbuds instead. Both are solid LED digital display earbuds; the deciding question is whether you need to silence the world or just tune it down. Before you commit, check the current price on Amazon.
are earbuds considered electronics
Yes. Wireless earbuds like the Aoslen A68Pro and TOZO NC9 are consumer electronics — they contain Bluetooth 5.3 radios, rechargeable batteries, dynamic drivers, and touch-control sensors. That's why they need charging and pairing like other small electronic devices.
can you connect earbuds to a tv
Often, yes — if your TV supports Bluetooth audio. Both the Aoslen and TOZO NC9 use Bluetooth 5.3 and pair with a range of devices, and Aoslen notes compatibility with Android, Windows, phones, tablets, and computers. If your TV has no Bluetooth, you'd need a transmitter.
should i get black or white earbuds
That's purely a preference call, and the data here only lists the Aoslen A68Pro in white; the TOZO NC9 sheet doesn't specify a color. Pick based on whether you want a lighter, more visible look or a darker one that hides smudges.
which has better noise cancelling, Aoslen or TOZO NC9
The TOZO NC9, clearly. Its data sheet lists hybrid active noise cancelling up to a 45dB reduction depth, while the Aoslen A68Pro's noise control field is "None" — it only blocks sound passively through the ear seal.
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