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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-30 · 6 min read · Independent comparison
• Zollexa's biggest strength: a wired 3.5mm connection plus a USB-C adapter and an inline mic — plug into a laptop, phone, or travel setup and start talking, with zero pairing and zero battery anxiety.
• Zollexa's biggest trade-off: it's wired, has no noise cancellation, and no Bluetooth — you're tethered to the cable, and there's no charging case or wireless convenience.
• CHENRUIDA M75's biggest strength: true wireless Bluetooth 6.0 with up to 80 hours of total playtime via the charging case, plus ANC/ENC and a lightweight open-ear design.
• CHENRUIDA M75's biggest trade-off: it relies on Bluetooth (no 3.5mm jack), so a laptop without working Bluetooth or a flaky wireless environment is a problem, and open-ear designs leak sound and let ambient noise in.
• Pick Zollexa if you live on video calls, want a simple inline-mic setup, and hate charging things.
• Pick CHENRUIDA M75 if you want wireless freedom for workouts, commuting, and multi-device pairing with a big battery cushion.
The Zollexa Over-Ear Headphones are built around one idea: keep it simple and keep it wired. There's a 3.5mm plug, a USB-C adapter in the box, an inline microphone, and in-line controls on the cable for volume and calls. That's the whole pitch — and for a lot of laptop users, it's exactly the right pitch. You plug in, the mic works, you talk. No pairing menu, no "which device is it connected to," no dying battery halfway through a meeting.
Comfort is clearly the second priority here. The padded over-ear design uses soft protein leather cushions, and the adjustable headband lets you dial in the fit for home, office, commuting, or travel. The dark blue finish and round earpieces keep it understated. It's also foldable, which matters more than people think — it flattens down into a backpack, a drawer, or a carry-on without a bulky case. If you split your time between a desk and a bag, that foldability is a real quality-of-life feature.
Who should skip it? Anyone who wants to walk around untethered, take calls away from the desk, or train with headphones on. The cable is the point, and it's also the limitation. If wireless freedom is non-negotiable, look at the other side of this comparison.
CHENRUIDA M75: Who It's For
The CHENRUIDA M75 is the opposite philosophy: cut the cord entirely. It's a true wireless open-ear design in a skin tone with an ABS enclosure, and it leans hard into convenience. Bluetooth 6.0 handles the connection, with a stated range up to 15 meters (about 35 feet), and it supports both binaural stereo mode and a mono mode so you can run a single earbud when you want to keep one ear open. That dual-mode trick is genuinely useful for work and study — one ear for a podcast or call, one ear for the room.
Battery is the headline. Each earbud is rated for up to 8 hours on a single charge, and with the digital charging case you can reach a total of up to 80 hours by taking turns between buds. A 1.5-hour charge time means the case refills quickly. The M75 also auto powers on and connects when you pull it from the case, and a single button handles music, volume, and calls. For people who forget to charge things, this is a much more forgiving setup than a wired headset that depends on the device it's plugged into.
Audio-wise, the M75 uses dynamic drivers with 16-ohm impedance and double-layer diaphragm drivers, which the spec sheet describes as delivering strong bass, clear mids, and bright treble. It also lists active, environmental, and passive noise cancellation, plus built-in mics for call clarity. The open-ear fit is designed for sports — running, cycling, workouts — and the skin-friendly material is aimed at long, fatigue-free wear.
Who should buy it? Anyone who wants wireless freedom across phones, laptops, TVs, and cars, values a big battery, and wants a fit that stays put during movement. Who should skip it? If your laptop's Bluetooth is unreliable, if you need a guaranteed wired connection for critical calls, or if you want full over-ear isolation, the open-ear design and Bluetooth-only connection won't suit you.
Side-by-Side: Which Should You Choose?
• Best for battery life → CHENRUIDA M75. Up to 80 hours total via the charging case versus a wired headset that draws nothing.
• Best for wireless freedom and movement → CHENRUIDA M75. Bluetooth 6.0, open-ear fit, and a design aimed at running and cycling.
• Best for zero-charging simplicity → Zollexa Over-Ear Headphones. No battery, no case, no pairing.
• Best for blocking outside noise → CHENRUIDA M75. It lists active and passive noise cancellation; Zollexa lists no noise control.
• Best for long desk sessions and comfort → Zollexa Over-Ear Headphones. Soft protein leather cushions and an adjustable, foldable over-ear frame.
• Best for travel and storage → Zollexa Over-Ear Headphones. The foldable design flattens into a bag without a charging case.
• Best for multi-device flexibility → CHENRUIDA M75. It pairs with phones, TVs, computers, laptops, cars, and smartwatches over Bluetooth.
• Best all-rounder for a mixed work-and-workout routine → CHENRUIDA M75, in my opinion, because it covers both.
If I had to pick one, I'd take the CHENRUIDA M75. In my opinion, its combination of Bluetooth 6.0, up to 80 hours of total playtime, noise cancellation, and a fit built for both work and workouts makes it the more versatile everyday companion — especially if you move between devices. That said, I'd choose the Zollexa Over-Ear Headphones without hesitation for one specific job: laptop calls. Wired reliability, an inline mic, and a USB-C adapter are hard to beat when a meeting can't afford a pairing hiccup. Buy the M75 for freedom; buy the Zollexa for certainty at your desk.
On the M75, take the earbuds out of the charging case — they auto power on and connect to your paired device. On your laptop, open Bluetooth settings, make sure Bluetooth is on, and select the M75 from the list of available devices. It's compatible with most Bluetooth-enabled computers and laptops.
Put the M75 in pairing mode and add it as a new Bluetooth device in your laptop's settings. Once paired, it should reconnect automatically the next time you take it out of the case, within the stated range of up to 15 meters.
Go to your laptop's Bluetooth or "Add a device" menu, scan for nearby devices, and pick the M75. The Zollexa, by contrast, needs no pairing at all — you just plug the 3.5mm cable in, or use the USB-C adapter for laptops without a headphone jack.
Open Settings, go to Devices, then Bluetooth & other devices, and choose "Add Bluetooth or other device." Select the M75 when it appears. If your laptop's Bluetooth is unreliable, the wired Zollexa is the safer fallback for calls.
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