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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 · 6 min read · Independent comparison
• Technics Reference Class HiFi — biggest strength: Dolby Atmos with head tracking plus adaptive noise cancelling and a planar magnetic driver architecture built for low distortion and accurate bass.
• Technics Reference Class HiFi — biggest trade-off: It's an in-ear lifestyle earbud with no waterproofing rating stated in the specs, so it isn't pitched at heavy sweat exposure.
• HAOYUYAN A10 — biggest strength: IPX7 waterproofing, a 50-hour total playback figure with an LED power display, and an ultra-light build aimed squarely at gym and running use.
• HAOYUYAN A10 — biggest trade-off: It relies on environmental noise cancellation for calls rather than active noise cancelling, and its warranty window is shorter.
• Pick Technics if you care most about sound quality, movies, calls and multi-device workflow.
• Pick HAOYUYAN if you care most about battery, sweat resistance and a fitness-first fit.
The Technics Reference Class HiFi (EAH-AZ100-V) is the more ambitious of these two on every audio-related spec. It uses a planar magnetic driver type — the sheet lists it as a Planar Magnetic Driver — paired with magnetic fluid driver technology that Technics says delivers low distortion, accurate bass and smoother mid-high frequencies. In plain terms, this is a design aimed at people who notice detail in their music rather than people who just want background sound.
The headline feature is Dolby Atmos with head tracking. When you turn your head to the left, the soundstage shifts so audio appears to come from your right, which is exactly the effect that makes movies and spatial-mixed music feel three-dimensional. If you watch a lot of films, series or concert content on a tablet or laptop, this is the single most distinctive thing on this page. Add adaptive noise cancelling that adjusts to your surroundings, a Voice Focus AI chip for call clarity, and three-point multipoint so you can manually prioritize which devices take priority, and you have a set built for a hybrid workday: laptop call in the morning, music at your desk, phone call on the walk home.
Who should skip it? If your main use case is sweating hard in a gym or running in the rain, nothing in this data sheet claims a water-resistance rating, so I wouldn't treat it as a workout-first pair. It's also the pick for someone who wants the richer feature set and is willing to check the current price on Amazon before deciding.
HAOYUYAN A10: Who It's For
The HAOYUYAN A10 Pro is built around a completely different priority: staying alive through punishment and lasting a very long time. The specs list IPX7 waterproofing, a waterproof mesh and an internal nano-coating to stop sweat from reaching the components, plus reinforced earhooks with 8G vibration resistance. That combination is clearly aimed at HIIT, mountain cycling, marathons and anyone whose earbuds live in a gym bag.
Battery is the other story. You get 8 hours per charge and a 50-hour total figure with the case, and — this is the part I like most — the case has an LED screen showing real-time power for the case and for each earbud individually, from 0 to 100%. No guessing whether the left bud is about to die. Fast charging over Type-C takes about 1.5 hours for a full charge.
Sound is handled by a new 13mm dynamic driver, with a sub-0.05s latency claim for gaming and video, and Bluetooth 5.3 with stability up to 15 meters and stronger wall penetration than 5.2. Calls use ENC (environmental noise cancellation) with beamforming mics that the sheet says hold up in 25mph winds, and dual-device pairing lets you jump between a laptop call and phone music.
The fit story is unusually specific: three sizes of medical-grade gel tips (S/M/L), a case that's 40% smaller than most, and an earbud weight listed at an extremely low 0.008lbs. The buds are Charcoal Black with a plastic enclosure, button/touch controls, and a 90-day manufacturer warranty.
Who should skip it? If spatial audio, active noise cancelling and premium mid-high clarity matter more to you than durability and runtime, this isn't the tool for that job. The shorter warranty is also worth weighing against the Technics' one-year coverage.
• Best for sound quality and detail → Technics Reference Class HiFi. Planar magnetic driver plus magnetic fluid technology is a fundamentally more elaborate audio design than a single dynamic driver.
• Best for movies and spatial content → Technics Reference Class HiFi. Dolby Atmos with head tracking is unique to this model here.
• Best for battery life → HAOYUYAN A10. 50 hours total versus 28 hours total, with a visible per-bud power readout.
• Best for gym, running and sweat → HAOYUYAN A10. IPX7, nano-coating, earhooks and vibration resistance are all explicitly stated; no water rating is stated for the Technics.
• Best for calls in noisy places → Technics Reference Class HiFi. Adaptive noise cancelling plus a Voice Focus AI chip is a stronger call-focused toolkit than ENC alone.
• Best for multi-device work → Technics Reference Class HiFi. Three-point multipoint with manual device prioritization beats dual-device pairing for a laptop-plus-phone-plus-tablet life.
• Best for gaming latency → HAOYUYAN A10. The sub-0.05s latency claim is the only latency figure on either sheet.
• Best for a low-hassle fitness fit → HAOYUYAN A10. Ultra-light build, three tip sizes including small ear canals, and a compact case.
If I were buying one pair for myself and my priority was how music, films and calls actually sound and feel, I'd buy the Technics Reference Class HiFi. The planar magnetic driver, Dolby Atmos head tracking, adaptive noise cancelling and three-point multipoint are a genuinely deeper feature set, and the 10-hour/28-hour battery is plenty for a normal day. If I trained hard several times a week and wanted earbuds I never had to think about, I'd buy the HAOYUYAN A10 instead — IPX7, 50 hours and a live power display are exactly the right answers for that life. In my opinion, these aren't competitors so much as two different jobs.
FAQ
For audio immersion and call quality, yes — in my opinion the Dolby Atmos head tracking, adaptive noise cancelling and planar magnetic driver put it ahead. For battery, waterproofing and gym durability, the HAOYUYAN A10 wins clearly.
Yes. The sheet lists 8 hours per charge and 50 hours total with the case, versus up to 10 hours with noise cancelling and 28 hours total for the Technics. The A10 also shows remaining power on an LED display.
Nothing in its specifications states a water-resistance rating, so I wouldn't recommend it as a sweat-heavy workout pair. The HAOYUYAN A10, with IPX7 waterproofing and an internal nano-coating, is the fitness-oriented option here.
That depends on what you're buying it for — hours of battery and sweat protection, or spatial audio and noise cancelling. Check the current price on Amazon for both before you decide, since the right answer changes with your use case, not just the number.
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