We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-18 · 8 min read · Independent comparison
If you want featherweight wired ear-fit headphones with a wide frequency range and zero charging to think about, choose Audio Technica ATH-EQ300M; if you need a totally wireless open-ear setup with a screen-on charging case, 48-hour total battery life and water/dust resistance, choose CNBRO TWS.
• Audio Technica ATH-EQ300M biggest strength: Just 20 g (0.7 oz) with an ultra-thin housing, a wired 3.5 mm connection and a 16 Hz – 24,000 Hz range — you plug in and listen, no batteries involved.
• Audio Technica ATH-EQ300M biggest trade-off: Wired only, no Bluetooth, and the control set is limited to a wired media remote — no touchscreen, no waterproofing claims in the data.
• CNBRO TWS biggest strength: True wireless Bluetooth 5.4 with an open-ear hook design, a touchscreen charging case, 8 hours per charge and up to 48 hours with the case, plus water- and dust-resistance.
• CNBRO TWS biggest trade-off: The narrower 20 Hz – 20,000 Hz range and no 3.5 mm jack mean you're fully dependent on Bluetooth and on remembering to charge.
• Who Audio Technica ATH-EQ300M is for: Listeners who want light, simple, cable-tethered headphones for long desk or commute sessions.
• Who CNBRO TWS is for: Runners, cyclists, gym-goers and anyone who wants open-ear awareness plus a smart case.
The ATH-EQ300M is defined by one number: 20 g. That is genuinely light for a set of ear-fit headphones, and it's paired with an "ultra thin housing" that the spec sheet calls out specifically for fit. If you've ever had headphones that felt fine for ten minutes and then became a chore, this is the design brief that answers it. The earpieces are rounded-tip in-ear units, and the whole thing comes in a purple finish with a black faux-leather carry case. It reads as a small, deliberate object rather than a gadget.
On the audio side, the numbers are more interesting than you'd expect from a wired ear-fit set. Impedance is 20 ohm — low, which means it should be easy to drive from a phone, laptop or a basic dongle without needing a headphone amp. The frequency range runs 16 Hz to 24,000 Hz, which extends below and above the 20 Hz – 20,000 Hz band that a lot of consumer gear stops at. In practice, that wider range is about headroom, not magic: the low end reaches deeper on paper, and the top end leaves room for detail. A dynamic driver handles the work.
Who should buy it: Someone who wants a light, no-fuss wired pair for a desk, a commute, or a long listening session where charging would be an annoyance. The purple colorway and included faux-leather case make it a reasonable everyday object to carry. Who should skip it: Anyone who has already moved to wireless, wants to run or train with sweat involved, or needs their headphones to survive rain. For those people, the cable and the lack of water resistance are the wrong shape of product.
CNBRO TWS: Who It's For
The CNBRO TWS takes the opposite approach: remove every wire and add as much utility as the case can carry. It's an open-ear, over-ear-hook design in white plastic, built around Bluetooth 5.4 with a 10-meter range. The open-ear shape is the headline feature for active use — because nothing seals your ear canal, you stay aware of traffic, other people and your surroundings while running, cycling or hiking. That's not a compromise you tolerate; it's the reason to pick this style.
Then there's the case. It has a screen, and that screen is not decorative. The spec lists answering calls, playing music, remotely taking photos, switching languages and adjusting EQ modes from the case itself. That's an unusual amount of control to put on a charging case, and it's genuinely useful if your phone is zipped into a pocket or strapped to your arm. The controls on the buds themselves are touch-based, and there's no 3.5 mm jack — this is wireless only.
Battery is the other big number. Single use is rated up to 8 hours, and the case stretches that to 48 hours. The item-level average battery life is listed at 7 hours, which is consistent with that 8-hour ceiling once you account for real-world conditions. A full charge takes about 2 hours. The buds weigh 18.14 g total, slightly lighter than the Audio Technica set, and the whole thing is water- and dust-resistant so rain, dust and snow are within scope.
Sound is described as a 360° spatial field with an immersive, Hi-fi character, driven by a dynamic driver. The frequency range is 20 Hz – 20,000 Hz. Noise control is listed as none, which makes sense for an open-ear design — you're not blocking the world out, you're listening alongside it. The age range starts at 6+, so it's positioned as a household-friendly product rather than a specialist one.
Side-by-Side: Which Should You Choose?
• Best for battery life → CNBRO TWS. Up to 8 hours per use and 48 hours with the case, versus a wired product that never needs charging but also never leaves the cable.
• Best for low-end reach on paper → Audio Technica ATH-EQ300M. Its 16 Hz floor dips below the CNBRO's 20 Hz, and its 24,000 Hz ceiling sits above the CNBRO's 20,000 Hz.
• Best for running, cycling and the gym → CNBRO TWS. Open-ear hooks plus water- and dust-resistance versus a wired set with no environmental rating.
• Best for plug-and-play simplicity → Audio Technica ATH-EQ300M. A 3.5 mm jack and a 1.2 m cord means no pairing, no charge time and no app.
• Best for lightness → Audio Technica ATH-EQ300M on the head, CNBRO TWS in the hand. 20 g for the Audio Technica versus 18.14 g for the CNBRO buds, but the CNBRO adds a case you have to carry.
• Best for on-case controls → CNBRO TWS. Calls, music, remote photos, language switching and EQ modes, all from the touchscreen case.
• Best for staying aware of traffic → CNBRO TWS. The open-ear design is built specifically for situational awareness.
• Best for long desk or study sessions → Audio Technica ATH-EQ300M. No battery to run down, low 20 ohm impedance that's easy to drive, and a light housing aimed at comfort over long stretches.
In my opinion, the deciding question is whether you'll be moving. If you're running, riding or lifting, I'd buy the CNBRO TWS — the open-ear hooks, the water and dust resistance, the 48-hour case and the touchscreen controls all point at exactly that life, and no wired set competes there. If you're mostly stationary — desk, commute, long listening — I'd buy the Audio Technica ATH-EQ300M. At 20 g with a 16 Hz – 24,000 Hz range and a 3.5 mm jack, it removes charging from the equation entirely. I'd only pick the Audio Technica if a cable genuinely doesn't bother you; if it does, the CNBRO wins by default. Check the current price on Amazon for both before you commit, since that's the one variable I can't weigh here.
FAQ
Up to 8 hours of single use, and up to 48 hours when you use the charging case. The average battery life field lists 7 hours, and a full charge takes about 2 hours. That 2-hour charge time is worth planning around.
The data lists it as water-resistant and dust-resistant, so rain, dust and snow are described as in scope. The Audio Technica ATH-EQ300M has no water- or dust-resistance rating in its data, so I wouldn't treat it as an outdoor-weather product.
I can't rank sound by ear from a spec sheet, and I won't pretend otherwise. On paper, the Audio Technica ATH-EQ300M covers 16 Hz – 24,000 Hz versus 20 Hz – 20,000 Hz for the CNBRO TWS, which is a wider range. The CNBRO instead leans on an open-ear spatial presentation. Both use a dynamic driver, and neither lists noise control — so expect to hear your surroundings with either.
That depends on what you're paying for. The CNBRO TWS bundles wireless, a touchscreen case and 48-hour total battery into one product; the Audio Technica ATH-EQ300M gives you a 20 g wired design with a wider frequency range and nothing to charge. Check the current price on Amazon for both and match it against which of those two jobs you actually need done.
As an Amazon Associate I earn from qualifying purchases.
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.
When you buy through links on this page, we may earn a commission from qualifying purchases at no extra cost to you.
Amazon and the Amazon logo are trademarks of Amazon or its affiliates. This site is an independent third-party review and is not affiliated with, endorsed by, or sponsored by Amazon or the product brands mentioned.