We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-30 · 7 min read · Independent comparison
If you want a kid-friendly wired headset that doubles as a sparkly unicorn accessory and can share one device between two listeners, choose QearFun Kids Unicorn Headphones; if you need a tiny passive box that switches audio between two sources or two headphones at the press of a toggle, choose Cubilux 3.5mm.
• QearFun's biggest strength: A complete listening package for kids — 40mm drivers, switchable 85dB/94dB volume limiting, a built-in mic, and a built-in 3.5mm Share Port so two kids can listen from one device.
• QearFun's biggest trade-off: It's wired only, with a fixed 3.5mm jack. There's no Bluetooth and no app, so it stays tethered to whatever it's plugged into.
• Cubilux's biggest strength: True bidirectional switching. Two inputs to one output, or one input to two outputs, flipped with a mechanical toggle, no power and no software.
• Cubilux's biggest trade-off: It makes no sound on its own. It's an accessory you plug headphones into — and with powered speakers it can introduce hum in certain setups.
• Buy QearFun if: You're shopping for a child age 3+ who needs safe, comfortable, shareable headphones for school, tablets, or travel.
• Buy Cubilux if: You already own headphones and want to stop unplugging cables to move between a PC, a console, and a second pair of cans.
The QearFun set is built around one idea: a child should be able to grab their headphones, put them on, and be heard and comfortable without a parent hovering. The switchable 85dB/94dB limiter is the headline feature here. At the lower setting it caps output for everyday listening; flipping to 94dB gives a bit more headroom for noisy environments like a car or a busy classroom. In my opinion that single switch is the most useful thing on this headset, because it's the one spec that directly addresses what parents actually worry about.
Around that core, the design does a lot of small jobs well. The 40mm dynamic drivers cover a 20Hz–20,000Hz range at 32 ohms impedance, which is an easy load for tablets, Chromebooks, Kindle Fire devices, and phones — all of which connect through the standard gold-plated 3.5mm jack with no pairing, no charging, and no setup. The built-in microphone handles online classes and family calls, and the Share Port is the sleeper feature: a second 3.5mm socket built into the headset so a sibling or friend can plug in their own headphones and hear the same thing. No splitter, no arguing over whose turn it is.
Comfort and durability are clearly aimed at kids ages 3 and up. Memory foam earcups sit over the ears, and the reinforced adjustable headband is sized to grow with a child. The cable is nylon braided and tangle-resistant, which matters more than any spec sheet can convey once a headset lives at the bottom of a backpack. It folds for travel, and it ships in gift packaging with a one-year manufacturer warranty.
Cubilux 3.5mm: Who It's For
The Cubilux selector solves a completely different problem. It's a passive 3.5mm switch box in a full aluminum case, small enough to sit on a desk without eating space at roughly 1.65 x 1.14 x 0.51 inches. Two ports, one toggle. Flip it left and the left channel is live; flip it right and the right one is. There's no power supply, no driver, no app — the mechanical feedback tells you which side is active, which is exactly the kind of thing you want when you're mid-call and don't want to guess.
The bidirectional part is what makes it flexible. In a 2-in-1-out setup, you keep one pair of headphones plugged in and switch between two sources — say a desktop PC and a gaming console, or a work laptop and a personal one. In a 1-in-2-out setup, you flip it around and send one source to two different headphones. That second mode is genuinely handy for a shared desk or a podcast setup where two people take turns listening. It ships with two 3-foot shielded TRS cables, so it's usable the moment it arrives.
Two honest caveats. First, this is designed primarily for headphone switching. With powered speakers, the deselected input sits in a floating, unfiltered state, and sensitive speakers can pick up interference as a hum — a known characteristic of passive switching with speakers, not a defect. Second, if you have a TRRS headset with a microphone, the selector can pass those signals, but you'll need TRRS-to-TRRS cables that aren't included, and mixing TRS and TRRS connections can make a computer favor the TRS signal.
Who should buy it: anyone juggling multiple audio devices or multiple headphones who is tired of crawling behind a desk to swap cables. Who should skip it: anyone who just wants one pair of headphones for one device — you'd be adding a box that does nothing for you.
• Best for young children → QearFun Kids Unicorn Headphones. Volume limiting, kid-sized fit, and memory foam comfort are all purpose-built for ages 3+.
• Best for hearing protection → QearFun. The switchable 85dB/94dB limiter is the deciding feature; Cubilux has no audio path of its own.
• Best for sharing audio with another person → QearFun. The built-in Share Port lets a second headset plug straight in, no splitter required.
• Best for switching between two devices → Cubilux 3.5mm. Toggle between two sources into one output, instantly and passively.
• Best for two headphones on one source → Cubilux. Run it in 1-in-2-out mode and route one signal to two sets of cans.
• Best for travel and portability → QearFun. It folds flat and packs into a backpack; the Cubilux is pocket-sized but is a desk accessory more than a travel item.
• Best for a child's online class or call → QearFun. The built-in mic plus the wired 3.5mm connection means plug in and go.
• Best for a minimalist desktop → Cubilux. Aluminum housing, anti-slip base, no power cable, no software.
• Best for a no-maintenance purchase → QearFun. No batteries, no charging, one moving part (the volume switch).
If I were buying for a child, I'd take the QearFun Kids Unicorn Headphones without much hesitation. The volume limiter, the built-in mic, the Share Port, and the foldable kid-proof build all point at the same buyer, and they point at it clearly. The wired-only design is the trade-off, but for a school and tablet use case it's a feature, not a flaw — nothing to charge, nothing to pair. I'd only steer you to the Cubilux 3.5mm if you already own headphones and your real problem is juggling audio sources. It's a smart, well-built little switch, but it isn't a headset, and it won't protect anyone's ears. Check the current price on Amazon for whichever one matches your setup.
how to switch headphones between devices
On a wired headset like the QearFun, you simply unplug the 3.5mm jack from one device and plug it into the next — tablets, laptops, Chromebooks, and phones all use the same standard jack. If you'd rather not keep swapping cables, the Cubilux 3.5mm selector lets you leave both devices connected and toggle between them instead.
how to switch headphones left right
If you mean the left and right channels of a switch box, the Cubilux selector works exactly this way: flip the toggle left to activate the left port and right to activate the right, with clear mechanical feedback so you always know which one is live. For actual left/right ear audio balance, that's handled by the source device's own settings, not by either product here.
how to switch headphones to speakers on computer
You can route a computer's output through the Cubilux selector, but be aware of one limitation: with powered speakers, the deselected input is left floating and unfiltered, and sensitive speakers can pick up interference as a hum. That's a normal characteristic of passive switching with speakers. For headphone-to-headphone switching, the Cubilux behaves exactly as intended.
how to switch headphones to headset windows 11
Windows 11 handles this in its own sound settings — pick the output device you want under System > Sound. The Cubilux selector is a hardware layer that sits underneath all of that: it can switch TRRS signals including microphone input, but you'll need TRRS-to-TRRS cables (not included), and mixing TRS and TRRS connections may cause the computer to favor the TRS signal.
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