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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-25 · 7 min read · Independent comparison
• Konohan 100 — biggest strength: 100 individually wrapped wired earbuds with a 3.5 mm jack, a 90 cm PVC cable and soft silicone tips, built for shared use, lending and testing.
• Konohan 100 — biggest trade-off: no microphone, no Bluetooth, no noise cancellation — it's a plug-in-and-listen earbud, nothing more.
• CHENRUIDA M75 — biggest strength: true wireless open-ear design with up to 80 hours of total playtime via the charging case, Bluetooth 6.0 and a built-in mic for calls.
• CHENRUIDA M75 — biggest trade-off: it's one pair, it charges, it pairs, and it only works with Bluetooth-capable devices — no 3.5 mm fallback.
• Who Konohan 100 is for: schools, libraries, museums, hotels and testing centers that need a large, disposable-safe supply of earbuds.
• Who CHENRUIDA M75 is for: one person who wants wireless earbuds for a laptop, study sessions, travel and workouts.
The Konohan 100 is not really a "headphone" in the personal-audio sense. It's a supply. You get 100 in-ear earbuds, each wrapped in its own individual bag, which tells you exactly how this product is meant to be used: handed out, lent out, collected back in, or given away. The 3.5 mm jack plugs into practically anything — phones, computers, laptops, fitness equipment, MP3 players — and the 90 cm (35.43 inch) PVC cable is a sensible length for sitting at a desk or standing at a kiosk. The silicone tips are designed to sit comfortably without pressure for longer stretches, and the rounded in-ear shape is a conventional fit rather than anything exotic.
What it does best is scale. If you're running a school testing session, a library loan desk, a museum audio station, a hotel front desk or a gym with shared equipment, buying 100 pairs in one go solves a logistics problem that no single premium headset can. The frequency range of 20 Hz to 30 kHz is broad on paper, and the sound is described as clear and non-jarring — the point here is intelligible speech and easy listening, not bass slam. There is no microphone, so these are for listening only. That's actually an advantage in a testing environment, where you don't want students recording or chatting.
CHENRUIDA M75: Who It's For
The CHENRUIDA M75 is the opposite philosophy: one pair, done properly. It's an open-ear true wireless earbud that sits at the entrance of your ear rather than sealing the canal, which is the whole appeal for people who dislike the plugged-up feeling of traditional in-ears. The enclosure is ABS in a skin tone, and each earbud weighs just 7.08 g, so the design intent is clearly "forget you're wearing it." The M75 is aimed at work, study, travel, running and cycling — situations where you want audio and still want to hear a bit of the world around you.
The headline feature is battery. Each earbud gives up to 8 hours on a charge, and the charging case extends that to a total of 80 hours, with a full recharge taking about 1.5 hours. The earbuds also beep when they're running low, and the case charges them when you drop them back in — including overnight. CHENRUIDA itself notes you shouldn't wear them continuously for very long stretches, which is honest and worth respecting.
On the tech side, the M75 uses Bluetooth 6.0 with a range of up to 15 meters (roughly 35 ft), so you can walk away from your laptop and stay connected. It supports both binaural stereo mode and mono mode, so you can use just the left or right earbud — genuinely useful if you like keeping one ear open for a colleague or a doorbell. Control is a single button with touch control for volume, music and calls. The built-in microphones isolate your voice from background noise for calls, and the audio setup uses dynamic drivers with a 16-ohm impedance and a double-layer diaphragm for strong bass, clear mids and bright treble. Noise control is listed as active, environmental and passive cancellation — though on an open-ear design, don't expect the isolation of a sealed headphone, since the open fit is the point.
Who should buy it: one person who wants wireless earbuds for a laptop, video calls, study, travel or workouts, and who values long battery life and an open, comfortable fit. Who should skip it: anyone without Bluetooth on their machine, anyone who needs maximum isolation on a plane, and anyone buying for a group — this is a single pair.
• Best for outfitting a classroom, library or testing center → Konohan 100. 100 individually wrapped pairs is a supply, not a purchase.
• Best for one person using a laptop wirelessly → CHENRUIDA M75. Bluetooth 6.0, auto on-and-connect, up to 15 m of range.
• Best for battery life → CHENRUIDA M75. Up to 8 hours per earbud and 80 hours total with the case; the Konohan 100 has no battery at all.
• Best for making calls and video meetings → CHENRUIDA M75. Built-in mics with voice isolation; the Konohan 100 has no microphone.
• Best for shared, hygienic, low-risk use → Konohan 100. Individually bagged earbuds you can hand out without worrying about loss or charging.
• Best for workouts, running and cycling → CHENRUIDA M75. Open-ear fit, 7.08 g per bud, designed to stay put.
• Best for older hardware with a headphone jack → Konohan 100. 3.5 mm plug works with phones, iPods, MP3 players, laptops and gym equipment.
• Best for a single, tidy everyday setup → CHENRUIDA M75. One case, one cable, one pair — no drawer full of tangled wires.
If I were buying for myself — one laptop, one pair of ears, calls and study and the occasional run — I'd take the CHENRUIDA M75. Wireless freedom, a mic that works for meetings, up to 80 hours of total playtime and an open-ear fit that stays comfortable are exactly what a personal laptop headphone should do in 2024, and I'd rather own one good pair than a box of spares. I'd only choose the Konohan 100 if my job were handing headphones to other people — a school, a library, a testing room or an event. Different problems, different answers, and this is one of the rare comparisons where the decision is genuinely that simple.
Put the CHENRUIDA M75 in your ears — they power on and connect automatically once removed from the charging case. Then open your laptop's Bluetooth settings, make sure Bluetooth is on, and select the M75 from the list of available devices. They're compatible with most Bluetooth-enabled devices, including laptops, computers, phones and TVs.
Adding them is the same as pairing them the first time. Turn on your laptop's Bluetooth, take the earbuds out of the case so they enter pairing mode, and choose the M75 when it appears in your device list. Once paired, the laptop remembers them, so later sessions connect on their own when you take the earbuds out.
Keep the earbuds within the 15-meter Bluetooth range of your laptop during pairing, and stay inside that range afterward for a stable connection. If they don't appear, put them back in the case, close it, and start again — the auto on-and-connect sequence handles the rest. Note that the Konohan 100 doesn't pair at all; it plugs into a 3.5 mm jack.
Open Settings, go to Devices, then Bluetooth & other devices, and switch Bluetooth on. Take the M75 out of the charging case so it starts broadcasting, then choose "Add Bluetooth or other device" and pick the M75 from the results. Windows 10 will confirm once the earbuds are connected and ready for audio.
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