How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want a wired in-ear monitor tuned for accuracy and gaming detail, choose TRUTHEAR x Crinacle Zero; if you need a wireless, all-day on-ear headphone with huge bass and long battery life, choose FiiO EH11.
• TRUTHEAR x Crinacle Zero — biggest strength: A dual 10mm dynamic-driver design with a hybrid frequency-division crossover and a phase-consistent tuning aimed at professional-monitor-style accuracy, all through a wired 3.5mm connection.
• TRUTHEAR x Crinacle Zero — biggest trade-off: It's wired only, has no noise cancelling, and its touch controls live on a remote rather than the earpieces — so it's tethered and minimal by design.
• FiiO EH11 — biggest strength: Wireless freedom with LDAC Hi-Res Bluetooth, a 40mm bass-forward driver, 30 hours of playback and dual-device pairing.
• FiiO EH11 — biggest trade-off: It's an on-ear Bluetooth headphone, so it can't match the isolation or fit of an in-ear, and it depends on charging rather than a cable.
• Who each is for: The Zero suits listeners who want wired accuracy and gaming positional cues; the EH11 suits people who want untethered, bass-heavy listening all day long.
The Zero is built around a specific idea: get the objective performance of a monitor earphone without the cold, clinical feel. It does this with two 10mm dynamic drivers working through a hybrid double frequency-division setup — an RC crossover plus an acoustic nozzle with filtering — so each driver handles its own range. The result, per the design notes, is a low-frequency lift and high-frequency response that follows HRTF characteristics, which is the same target serious monitoring gear chases. If you've read about in-ears sounding "flat but lifeless," the Zero is explicitly tuned to avoid that, aiming for a natural, full-bodied timbre instead.
The construction is where it gets interesting. The cavity is made with DLP-3D printing using HeyGears medical-grade high-transparency resin, a process normally reserved for high-end multi-driver and custom earphones. That lets TRUTHEAR carve a delicate acoustic nozzle that traditional molding struggles to reproduce, while keeping the shell lightweight and skin-friendly. The outer shell is then finished with a hand-polished, UV-cured glue-dropping cap over a sandwich structure, which is as much about durability as it is about looks. A 0.78 2-pin recessed socket and a four-strand silver-plated cable round it out, and because the connector is standard, you can swap cables later.
Who should buy it? Gamers and detail-focused listeners. The phase consistency across the full frequency range is a real advantage — the notes call out that common multi-driver earphones suffer phase convergence problems that smear the sound, and the Zero is engineered to avoid that. Clean phase and a 20Hz–39.5kHz range make positional audio cues easier to trust, and the wired 3.5mm jack means zero latency, which matters for competitive play.
Who should skip it? Anyone who wants to move around untethered. There's no wireless technology here, no noise cancelling, and the touch controls sit on a wired remote rather than the buds themselves. If you hate cables, this isn't your pick.
The EH11 is a different animal entirely — a retro-styled on-ear Bluetooth headphone that happens to be very light. At roughly 92g with a clamping force of just 1.7N, it's designed for long sessions without pressure build-up, and a 1.5-hour charge gets you up to 30 hours of playback. That combination is the whole pitch: wear it all day, charge it briefly, forget about it.
The audio side leans bass-first. A 40mm long-stroke dynamic driver with a high-damping composite diaphragm pushes the resonance frequency down to 60Hz and extends bass to 17Hz. That's a deliberately warm, impactful low end, and the semi-open back is meant to keep the sound feeling open without leaking everything to the room. On top of that, LDAC support sends up to 990kbps — roughly triple the data rate of standard SBC/AAC — so wireless listening gets close to lossless quality, provided your source device supports LDAC.
The feature set is built for flexibility. Dual-device Bluetooth 5 lets you stay connected to a phone and a computer at once and hop between music, calls, and video without re-pairing. The FIIO Control App unlocks EQ presets like Pop and Rock, plus a gaming mode tuned to lift footsteps and gunshot detail for better positioning. There's a built-in HD mic for calls and team chat. The physical wood-grain knob handles volume and track control, and because it's a real knob, you can operate it by feel without looking.
Who should buy it? Commuters, remote workers, and casual gamers who want one headphone for everything and refuse to be tied to a cable. Who should skip it? Anyone who needs serious isolation or a purely wired, zero-latency connection. On-ear headphones with a semi-open back let sound in and out, and there's no noise cancelling here.
• Best for competitive gaming latency → TRUTHEAR x Crinacle Zero. Wired 3.5mm means no Bluetooth delay, and the phase-consistent tuning helps positional cues.
• Best for battery life and freedom → FiiO EH11. Up to 30 hours per 1.5-hour charge, with no cable at all.
• Best for bass depth → FiiO EH11. A 40mm long-stroke driver reaching down to 17Hz is built for impact.
• Best for tuning accuracy → TRUTHEAR x Crinacle Zero. Hybrid crossover, HRTF-aligned response, and dual 10mm drivers target monitor-grade objectivity.
• Best for long listening comfort → FiiO EH11. At 92g with 1.7N clamping force, it's engineered to avoid fatigue.
• Best for swappable hardware → TRUTHEAR x Crinacle Zero. The universal 0.78 2-pin socket lets you change cables; the EH11 instead offers replaceable, recolorable ear pads.
• Best for working across two devices → FiiO EH11. Dual-device Bluetooth switching between a phone and a computer.
• Best for isolation and a secure in-ear seal → TRUTHEAR x Crinacle Zero. An in-ear fit with rounded tips blocks far more ambient noise than a semi-open on-ear.
In my opinion, the right answer depends entirely on how you listen. If I wanted one headphone for commuting, calls, and bass-heavy music without ever thinking about a cable, I'd buy the FiiO EH11 — the 30-hour battery, LDAC, and dual-device pairing make it the more versatile everyday companion. But if I cared most about accuracy and low-latency gaming, I'd buy the TRUTHEAR x Crinacle Zero, because its crossover design and phase consistency are aimed squarely at precision, and no Bluetooth headphone beats a wire for timing. Pick the Zero for critical, wired listening; pick the EH11 for wireless convenience. Whichever way you lean, check the current price on Amazon before deciding.
FAQ
No. It's a wired in-ear headphone with a 3.5mm jack and a 0.78 2-pin cable connection. There's no Bluetooth and no built-in battery, so it never needs charging.
FiiO lists up to 30 hours of playback from a 1.5-hour charge. That figure will vary with volume and whether you're using LDAC, which uses more power than standard codecs.
For pure positional accuracy and zero delay, I'd lean toward the TRUTHEAR x Crinacle Zero thanks to its wired connection and phase-consistent tuning. The FiiO EH11 counters with a dedicated gaming mode that boosts footsteps and gunshots, plus a built-in mic — useful if you want wireless convenience.
Neither does. Both list noise control as none. The Zero isolates passively through its in-ear seal, while the EH11 is a semi-open on-ear design that lets more outside sound in.
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.
See also: RIG 700HX vs kurdene LED Display: Durable Long Lasting, Avantalk Infinity vs MEE audio M6: APTX Adaptive Headphones, LOBKIN Open Ear Earbuds vs Cleer ARC 5: Open Ear Headphones, BANIGIPA Open Ear True vs Picun B8