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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-28 · 7 min read · Independent comparison
If you want a long, tough extension cable that gets a 3.5mm signal across a room without drama, choose Hftywy 20ft; if you need kid-safe wireless headphones that can also run wired, choose QearFun Kids Unicorn.
• Hftywy 20ft biggest strength: 20 feet of reach with a 90-degree right-angle plug, so you can sit far from a TV or PC and still keep the audio clean.
• Hftywy 20ft biggest trade-off: it adds no sound of its own and does not pass microphone signal — it is a 3-pole TRS extension, nothing more.
• QearFun Kids Unicorn biggest strength: 60 hours of Bluetooth playtime plus a parent-controlled 74/85/94dB volume limit, with wired mode when the battery runs out.
• QearFun Kids Unicorn biggest trade-off: it is a children's headphone built around safety and comfort, not a reference-grade listening tool, and it costs far more than a cable.
• Who Hftywy 20ft is for: anyone fighting a cable that is too short — TV, desktop PC, car stereo, receiver, MP3 player.
• Who QearFun Kids Unicorn is for: parents buying for a child who needs safe volume, a mic for school, and wireless freedom on a tablet or Chromebook.
The Hftywy 20ft is a male-to-female 3.5mm stereo extension cord. That is its entire purpose, and it is a purpose most people underestimate until they are stuck sitting three feet from a TV because the factory cable will not stretch. Twenty feet changes the geometry of a room. You plug the male end into your device, plug your existing headphones or speakers into the female end, and suddenly the couch is a valid listening position.
The build is where this cable earns its place. The core is silver-plated oxygen-free copper with double shielding, which is the combination you want if you are running audio past power bricks, chargers and a nest of cables behind a desk. The housing is zinc alloy and the jacket is double-braided nylon, and the spec sheet states it is tested to withstand over 15,000 bends. I care less about the number and more about what it implies: this is a cable meant to be coiled, yanked and shoved into a bag repeatedly rather than treated delicately.
The 90-degree right-angle connector is the quiet hero here. On a TV, a monitor or a phone in a pocket, a straight plug sticks out and becomes a lever that eventually damages the port. A right-angle plug folds flat against the device, which is exactly what you want in tight spaces. Compatibility is broad — anything with a standard 3.5mm jack, including smartphones, tablets, PCs, receivers, car stereos and MP3 players, and the sheet specifically lists Fire HD 8 and Fire HD 10 tablets. The one thing to be clear about: it is a 3-pole TRS cable and does not support microphone functions. If your headset has a mic, the mic will not work through this extender.
Buy it if your problem is distance, port strain, or a cable that keeps dying at the plug. Skip it if you need headphones, wireless anything, or a mic path.
The QearFun Kids Unicorn is a different category entirely: an over-ear Bluetooth 5.3 headphone designed for children, in a Unicorn Pink finish with a sparkly horn motif and an electroplated gradient look. It comes in Dino, Cat and Unicorn variants, and the sheet describes it as gift packaging — this is clearly built to be handed over as a present, not bought as an audio tool for an adult.
The feature that actually matters is the volume limit. There are three parent-controlled levels — 74dB for toddlers, 85dB for everyday listening, and 94dB for noisy settings like a plane cabin — and the control button is deliberately hidden so a child cannot quietly max it out. That single design decision is the reason to buy this over a generic kids headphone. Everything else supports it: soft PU ear cushions, a steel-reinforced adjustable headband sized for ages 3 to 20, and an ABS and leather build meant to survive drops and twists.
On the audio side you get 40mm dynamic drivers, a 20Hz–20kHz frequency range, 32 ohm impedance, and passive noise cancellation from the over-ear seal rather than active electronics. Bluetooth 5.3 gives a stable connection out to roughly 10 meters, which is plenty for a tablet on the kitchen table or a Chromebook across a bedroom. There is a built-in HD microphone for online classes and family calls — a real difference from the Hftywy cable, which has no mic path at all. Battery life is listed at 60 hours with a 1.5-hour charge time, and the headphones fold for travel. A 3.5mm jack is present too, so wired mode works when the battery is flat or when a school or airline insists on cables.
Buy it if you are buying for a child and want wireless convenience, a mic, and volume protection in one package. Skip it if you are an adult chasing critical listening, or if you just need a long cable.
Side-by-Side: Which Should You Choose?
• Best for extra reach → Hftywy 20ft. Twenty feet of male-to-female extension is the entire point, and nothing on the QearFun side solves a short-cable problem.
• Best for protecting a child's hearing → QearFun Kids Unicorn. The 74/85/94dB parent-controlled limit with a hidden button has no equivalent on a passive cable.
• Best for tight spaces and fragile ports → Hftywy 20ft. The 90-degree right-angle plug folds against the device instead of levering on the jack.
• Best for online classes and calls → QearFun Kids Unicorn. Built-in HD microphone; the Hftywy cable explicitly does not support mic functions.
• Best for durability under abuse → both, for different reasons. Braided nylon and a 15,000-bend rating on the cable; drop-resistant kid-proof construction on the headphones.
• Best for a gift → QearFun Kids Unicorn. Unicorn, Dino or Cat styling in gift packaging is made to be unwrapped.
• Best for a desk, TV or car stereo setup → Hftywy 20ft. Receivers, speakers, car stereos and PCs are exactly the listed use cases.
In my opinion, these are not substitutes, so the honest answer is that you should buy the one that matches the problem in front of you. If your headphones, speaker or TV simply cannot reach where you sit — or your plug keeps dying in a tight port — I would buy the Hftywy 20ft without hesitating; twenty feet, a right-angle head and a braided jacket solve a specific, common, irritating problem. If you are shopping for a child, I would buy the QearFun Kids Unicorn, because the hidden volume limiter, the 60-hour battery and the built-in mic make it genuinely useful for school and travel, not just cute. If you have to pick one and you are buying for a kid, the QearFun is the more complete product. If you are buying for yourself and a cable, the Hftywy wins on price-per-problem by a wide margin. Check the current price on Amazon for whichever one matches your situation.
FAQ
how to make aux cable with headphones
You do not need to build anything. A male-to-female 3.5mm extension like the Hftywy 20ft plugs into your device on the male end and your existing headphones on the female end, extending the run by 20 feet. Note it is a 3-pole TRS cable, so headphone audio passes through but microphone signal does not.
Use a 3.5mm-to-USB-C or 3.5mm-to-Lightning adapter, then connect your headphones to it. If you also need distance, put a male-to-female extension such as the Hftywy 20ft between the adapter and the headphones — it works with any device that has a standard 3.5mm jack.
how do i connect my wired headphones to my phone
Plug the headphones into a 3.5mm jack if your phone has one. If it does not, use the appropriate adapter for your charging port. The Hftywy 20ft adds reach rather than conversion, and the QearFun Kids Unicorn can also run in wired mode through its 3.5mm jack when you prefer a cable.
The design targets that directly. There are three parent-controlled volume limits — 74dB, 85dB and 94dB — with a hidden button so kids cannot raise the level themselves. The adjustable steel-reinforced headband is sized for ages 3 to 20.
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