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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
If you want wireless freedom with active noise cancellation for travel, commuting and long work sessions, choose Silensys Million Sold 10; if you need studio-accurate, open-back wired sound for critical listening, producing or gaming, choose Linsoul Kiwi Ears Altruva. These two headphones barely compete for the same buyer — one is built to silence the world around you, the other is built to open it up.
• Silensys Million Sold 10 — biggest strength: Bluetooth 5.0 wireless with active noise cancellation and a claimed 30+ hours of playtime per charge, so it works untethered all day.
• Silensys Million Sold 10 — biggest trade-off: It is a closed, battery-dependent headphone tuned for everyday listening, not reference accuracy — and the brand itself suggests taking it off every 1–2 hours in hot weather.
• Linsoul Kiwi Ears Altruva — biggest strength: An open-back, wired 50mm dynamic driver with a studio monitor-like tuning and a 20Hz–40kHz range, aimed at accuracy and soundstage rather than isolation.
• Linsoul Kiwi Ears Altruva — biggest trade-off: It is wired only, has no active noise cancellation, and its open-back design deliberately lets outside sound in — the opposite of a commuter headphone.
• Choose Silensys Million Sold 10 if you want one pair for flights, offices, calls and casual music without a cable.
• Choose Linsoul Kiwi Ears Altruva if you want a dedicated listening tool for a desk, studio or gaming setup where sound quality comes first.
The Silensys Million Sold 10 (model E7) is an over-ear wireless headphone built around three ideas: kill background noise, sound lively, and last all day. The active noise cancellation is the headline feature, and it is paired with a built-in microphone that the brand says enhances your voice so you can be heard clearly on calls. That combination — ANC plus call clarity — is exactly what you want on a plane, on a train, or in a shared office where you are constantly talking to people.
The spec sheet backs up the "all-day" pitch. Silensys rates the battery at 30 hours average life at Bluetooth mode or ANC mode, with a 3-hour charge time. The earcups are over-ear with a circular shape, wrapped in soft leather with a premium metal enclosure, and they rotate so you can fine-tune the fit. Controls are touch-based and cover call control, voice control, volume and noise control. You also get a 3.5mm jack, so you can run it wired when the battery is empty. Bluetooth 5.0 handles the wireless side, the frequency range is 20Hz–20kHz, and it comes with an 18-month warranty.
Linsoul Kiwi Ears Altruva: Who It's For
The Linsoul Kiwi Ears Altruva is a different animal entirely. It is a wired, open-back, over-ear headphone with a single all-new OEM 50mm dynamic driver developed specifically for this model. Linsoul describes the tuning as studio monitor-like: bass that hits hard and fast without muddying the midrange, a natural and balanced midrange for instruments and vocals, and a clear, airy treble. The driver uses stronger neodymium magnets and custom PU/PEK composite diaphragms with an ultra-pure copper ring, which the brand says helps it perform especially well in the mid and upper frequencies.
The open-back design is the defining feature. Because air flows freely in and out of the earcups, the soundstage and imaging open up — Linsoul pitches it as the width of a concert inside your headphones. That is a real benefit for anyone doing critical listening, mixing, podcasting, live streaming or gaming, where a wide, precise image matters more than blocking out a noisy room. The materials are a step up in feel too: PVD-coated steel, wood and vegan leather, in a black-grey finish. Impedance is 32 ohm, sensitivity is 98dB, and the frequency range stretches from 20Hz to 40kHz. It ships with a cable, uses a 3.5mm jack, and carries a 1-year warranty.
Who should buy it: audio engineers, audiophiles, gamers and content creators who listen at a desk and want accuracy and space over convenience. The 32 ohm impedance and 98dB sensitivity suggest it should be easy enough to drive from everyday sources, though a dedicated amp or DAC is the natural partner for this kind of headphone. Who should skip it: anyone who needs noise cancellation, wireless freedom, or to wear headphones on a bus, plane or open-plan office. Open-back headphones leak sound both ways — you will hear the room, and the room will hear you. That is physics, not a flaw, but it rules the Altruva out as a commuter pick.
• Best for noise cancellation → Silensys Million Sold 10. It has active noise cancellation; the Altruva only offers passive isolation, and its open-back design lets sound in by choice.
• Best for soundstage and imaging → Linsoul Kiwi Ears Altruva. Open-back airflow plus a 20Hz–40kHz range is built for width and precision.
• Best for battery life and wireless use → Silensys Million Sold 10. Bluetooth 5.0 with 30 hours of average battery life means no cable and no daily charging.
• Best for studio, mixing and monitoring work → Linsoul Kiwi Ears Altruva. Studio monitor-like tuning and a purpose-built 50mm dynamic driver are aimed squarely at critical listening.
• Best for calls and voice pickup → Silensys Million Sold 10. A built-in microphone designed to make your voice clearly heard, plus call and voice touch controls.
• Best for gaming and streaming at a desk → Linsoul Kiwi Ears Altruva. Open-back imaging and a wired connection keep latency out of the equation.
• Best for materials and premium feel → Linsoul Kiwi Ears Altruva. PVD-coated steel, wood and vegan leather versus the Silensys' metal and leather build.
• Best for a one-headphone-does-everything setup → Silensys Million Sold 10. ANC, wireless, a 3.5mm wired fallback and an 18-month warranty make it the more versatile single purchase.
In my opinion, the right answer depends entirely on where you listen — and since I have to pick one, I would buy the Linsoul Kiwi Ears Altruva if sound quality is your priority and you listen at a desk, in a studio or at a gaming setup. Its open-back design, purpose-built 50mm driver and studio monitor-like tuning are aimed at exactly the kind of listener who is comparing these two in the first place. But if you want one headphone for flights, offices, calls and everyday wireless listening, I would choose the Silensys Million Sold 10 without hesitation — active noise cancellation, Bluetooth 5.0 and 30 hours of battery do things the Altruva simply was not designed to do. Buy the one that matches your room, not the one that looks better on paper.
The Silensys Million Sold 10. It is wireless with Bluetooth 5.0, has active noise cancellation and 30 hours of average battery life, which is what travel actually demands. The Altruva is wired, open-back and lets outside noise in by design.
No. It uses passive noise cancellation only, and because it is open-back, ambient sound flows in freely. That trade-off is what gives it its wider soundstage and better imaging.
Yes. It includes a 3.5mm jack alongside Bluetooth, so you can plug in when needed. Charging takes about 3 hours, and the brand rates battery life at 30 hours average.
The Linsoul Kiwi Ears Altruva, in my opinion. Its open-back 50mm dynamic driver, 20Hz–40kHz range and studio monitor-like tuning are built for accurate imaging — the qualities that matter most for mixing, monitoring and gaming.
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See also: TRUTHEAR x Crinacle Zero vs Linsoul Kiwi Ears Belle: In Ear, Audio-Technica ATH-M40x vs HIFIXAUDIO Kiwi Ears Halcyon, LilGadgets Connect+ Pro vs Linsoul KZ ZS10