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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-23 · 7 min read · Independent comparison
• ibrain Air Tube Headphones — biggest strength: a true air-tube design with no loudspeaker inside the earpiece, plus metal-shielded wiring and an over-ear fit that stays put.
• ibrain Air Tube Headphones — biggest trade-off: it's wired with a 3.5mm jack, so jackless phones need an adapter, and you're physically tied to your device.
• DUOSSEAR F11 — biggest strength: a wireless Bluetooth ear-clip that sits on the outside of your ear entirely, with dual microphones and ENC noise reduction for calls.
• DUOSSEAR F11 — biggest trade-off: it's bone conduction, not air tube, so the sound path and the fit feel are completely different — and it lives or dies on Bluetooth.
• Buy the ibrain if you want a wired, over-ear, air-tube headset for long desk sessions, calls with in-line controls, and a fit that works for kids and adults.
• Buy the DUOSSEAR F11 if you want nothing in or over your ear, no cable at all, and clearer voice pickup on the move.
The core of the ibrain design is simple and specific: there is no loudspeaker inside the earplug. Sound travels up an air tube instead, which physically separates the driver from your ear and puts distance between your phone and your body. That's the whole pitch, and it's a real structural difference — not a marketing angle. The wiring is metal-shielded and made from multiple strands of copper, which the manufacturer frames as durability against daily wear and tear.
The fit is over-ear, with an adjustable headband that stretches to suit both adults and kids, and soft on-ear pads meant for all-day wear. In-line controls on the cable let you handle volume and mute your mic without digging into settings, and the whole thing folds down so it drops into a backpack. It weighs 9.6 ounces, it's wired through a 3.5mm jack, and it ships with a one-year warranty.
Who should buy it? In my opinion, this is for the person who spends hours tethered to a laptop or a 3.5mm device and wants the air-tube structure specifically — someone who reads "no speaker in the ear" and decides that's the feature they're here for. It's also a sensible pick for shared use, since the adjustable headband covers kids and adults. Who should skip it? Anyone who has already moved to a jackless phone and doesn't want to deal with an adapter, and anyone who refuses to be attached to a cable. This is a wired headset by design. If you want freedom of movement, it is not the answer, no matter how good the tube concept is.
One honest note on the brand: ibrain states it has focused on air-tube headphones for over 20 years and that the technology holds invention patents in multiple countries, including the United States. That's the manufacturer's own claim about its history and intellectual property — treat it as background on the company, not as a certification of this specific unit.
The DUOSSEAR F11 takes the opposite route. It's a bone conduction Bluetooth earphone that clips onto your ear rather than sitting inside it, which the brand positions around safety and hygiene — nothing is jammed into the canal, and nothing is shared ear-to-ear in the same way an in-ear tip is. The driver is a bone conduction driver with a stated frequency range of 20Hz to 20,000Hz, and the whole thing is wireless over Bluetooth, with no jack at all.
The feature that stands out for daily life is the dual microphone setup with ENC noise reduction. If you take a lot of calls — walking, commuting, working with your hands — that's the part of this design that earns its keep, because it's aimed squarely at making your voice come through when there's background noise. The ear-clip, open-ear format means you keep your ears open to your surroundings, which is the entire reason people choose this category.
Who should buy it? In my opinion, the F11 is for the wireless-first buyer: someone who wants zero cables, wants their ears unblocked, and cares more about call clarity and situational awareness than about a wired, over-ear fit. It suits movement — errands, light exercise, being out and about — far better than a tethered headset does. Who should skip it? Anyone who specifically wants the air-tube structure, because that's not what this is. It's bone conduction. And anyone who dislikes charging and pairing logistics, since Bluetooth is the only way in. If you want a plug-and-play wired headset you never have to think about, this isn't it.
Side-by-Side: Which Should You Choose?
• Best for the air-tube concept specifically → ibrain Air Tube Headphones. No loudspeaker in the earplug; sound travels via the tube.
• Best for long wired desk sessions → ibrain Air Tube Headphones. In-line volume and mic controls, foldable, over-ear comfort pads.
• Best for calls in noisy places → DUOSSEAR F11. Dual microphones with ENC noise reduction are built for voice pickup.
• Best for fitting multiple people → ibrain Air Tube Headphones. The adjustable headband is sized for adults and kids alike.
• Best for keeping ears open to your surroundings → DUOSSEAR F11. Open-ear ear-clip placement leaves the canal free.
• Best for plug-and-play simplicity → ibrain Air Tube Headphones. A 3.5mm jack, no pairing, no charging routine.
• Best for phones without a headphone jack → DUOSSEAR F11. It's wireless, so an adapter question never comes up.
If I had to pick one, I'd buy the ibrain Air Tube Headphones — but only if the air-tube structure is the reason I'm shopping. In my opinion, it's the more distinctive product of the two: no speaker in the ear, metal-shielded wiring, a foldable over-ear build with in-line controls, and a fit that works across ages. That's a lot of concrete design for a wired headset.
The DUOSSEAR F11 wins on a different axis, and I'd choose it instead if wireless freedom and call clarity matter more to me than the air-tube approach. It's genuinely the better pick for movement and for voice. Just be clear about which problem you're solving before you buy — the two products aren't interchangeable, and the specs make that obvious.
how do non ear headphones work
They move sound to your ear without pushing a speaker into the canal. The ibrain Air Tube Headphones use an air tube — there's no loudspeaker in the earplug, so sound travels up the tube instead. The DUOSSEAR F11 uses a bone conduction driver and clips onto the ear, leaving the canal open.
what are non in ear headphones called
You'll see them described as open-ear, over-ear, ear-clip, bone conduction, or air-tube headphones, depending on the design. The ibrain is an over-ear air-tube headset; the DUOSSEAR F11 is an open-ear, ear-clip bone conduction model. Same broad family, two different mechanisms.
what are the best open ear headphones
"Best" depends on what you need, so I'd match the design to the job. If you want a wired air-tube build with in-line controls and an adjustable over-ear fit, the ibrain Air Tube Headphones is my pick. If you want wireless, ear-clip comfort and dual-mic ENC call clarity, I'd point you to the DUOSSEAR F11.
how to wear in ear headphones
This pair doesn't go in your ear at all, which is the point. Wear the ibrain with the headband over your head and the pads resting on your ears, adjusting the band for fit. Wear the DUOSSEAR F11 by clipping it onto the outside of your ear so the canal stays open.
One last practical note: I've deliberately avoided quoting any figures here, because that's not what this comparison is about. If cost matters to your decision, check the current price on Amazon before you commit — the button on this page will take you there.
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See also: ibrain Air Tube Headphones vs YINYOO KBEAR K01: Wired Noise, ibrain Air Tube Headphones vs ACAGET USB C Headphone, non in ear headphones