How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-24 · 8 min read · Independent comparison
• Belkin SoundForm Surround — biggest strength: 60 hours of battery life, Bluetooth 5.4 with multipoint pairing to two devices, and active noise cancellation in a foldable over-ear design.
• Belkin SoundForm Surround — biggest trade-off: It's a wireless-first adult headphone, so it needs charging, and its soft fabric-and-foam build is built for commuting and desk work rather than being thrown in a backpack by a kid.
• acer OHW355 — biggest strength: A physical 74dB/85dB volume limiter plus a tangle-free nylon-braided 3.5mm cable — no battery, no pairing, no setup.
• acer OHW355 — biggest trade-off: It's wired only, has no noise cancellation and no multipoint, so it won't suit anyone who wants to move around freely or take calls.
• Who each pick is for: Belkin SoundForm Surround for adults who want long battery life, wireless freedom and a foldable travel shape; acer OHW355 for parents buying for a child who needs a safe, durable, plug-and-play pair.
The SoundForm Surround is the more capable headphone of the two, and almost all of that comes down to three specs: 60 hours of battery, Bluetooth 5.4 with multipoint, and active noise cancellation. Sixty hours is a genuinely long number in over-ear terms — it means you can take these on a week-long trip, use them on flights and at a hotel desk, and not think about the charger. Multipoint is the quiet hero here: staying connected to a laptop and a phone at the same time means you can be listening to music from your computer and still catch a call on your phone without repairing anything. That single feature is what separates a work headphone from a toy.
Sound is handled by 40mm dynamic drivers with a 20Hz–20kHz frequency range, which is the standard full-range window for consumer headphones. Belkin calls its tuning "Signature Sound," and the driver size suggests enough air movement for real bass rather than a thin, tinny presentation — good for music, podcasts and video. The built-in microphone uses environmental noise cancellation to clean up voice pickup, so calls are a genuine use case, not an afterthought. Controls are push-button, which is simple and predictable, and there's a 3.5mm jack plus an included AUX cable, so you can go wired when the battery is flat or when you're on a plane with an in-seat system.
Comfort and portability are the other half of the story. The ear cups are pillowy soft, the headband adjusts to fit different head sizes, and the whole thing folds. That fold matters more than people expect: a folding over-ear headphone drops into a bag pocket or a seat-back pouch instead of taking up the whole top of a backpack. Belkin also builds it from recycled materials with a plastic, fabric and foam enclosure in blue, and backs it with a two-year limited manufacturer warranty. In my opinion, this is the pick for commuters, remote workers, students and frequent travellers — anyone who wants one headphone to cover music, calls and laptop audio. Skip it if you specifically need a child-safe volume cap, or if you'd rather never charge a battery.
The acer OHW355 is aimed at a different buyer entirely, and the spec sheet says so plainly. Its headline feature is the volume limiter: a physical switch that locks output at either 74dB or 85dB even if the source device is turned all the way up. Most kids' headphones offer a single 85dB cap; this one adds a 74dB ultra-safe mode for younger or more sensitive ears. The 85dB figure also shows up as the rated sensitivity, and the 32-ohm impedance means it's easy to drive — a tablet, a Chromebook or a Switch will push it to a comfortable level without an amp. That's the whole design philosophy: safe, simple, no surprises.
Durability is clearly the second priority. The cable is high-density nylon braided rather than plain PVC, which the manufacturer describes as several times more tensile-strong, and the smooth braid resists tangling — give it a shake and it comes undone. The body is ABS plastic in blue cyan, which is a sensible choice for something that will live in a school bag. The ear cups rotate 90 degrees and the headband adjusts, so the fit adapts to different ages and face shapes, and the soft skin-friendly padding is meant to survive long study or gaming sessions without pressure points. Acer rates it for kids, teens and adults, and covers it with a one-year warranty.
Audio is handled by 40mm dynamic drivers with a 20kHz frequency response — the same driver size as the Belkin, tuned for balanced stereo with clear vocals, smooth treble and moderate bass. That's a sensible tuning for spoken word: online lessons, audiobooks and video calls come through intelligibly, and games and music sound fine without being bass-heavy. Connectivity is a standard 3.5mm jack, plug-and-play with Kindle Fire tablets, PCs, learning devices and Switch. There's no Bluetooth, no noise cancellation and no multipoint — it's a wired headphone, full stop. Buy it if you're outfitting a child for school, remote lessons or travel and you want a volume ceiling, a cable that survives being yanked, and zero charging. Skip it if you want wireless freedom or noise cancelling for yourself.
• Best for battery life → Belkin SoundForm Surround. 60 hours on a single charge versus a wired headphone that never needs charging but also never leaves the cable behind.
• Best for safe listening for kids → acer OHW355. A physical 74dB/85dB limiter is something the Belkin simply doesn't have, and it's the single most important spec for a child's headphone.
• Best for commuting and travel → Belkin SoundForm Surround. Foldable, wireless, active noise cancellation, 33-foot Bluetooth range, and an AUX cable for in-flight systems.
• Best for working across two devices → Belkin SoundForm Surround. Bluetooth multipoint keeps a laptop and a phone connected at the same time — the acer has no wireless at all.
• Best for durability against rough handling → acer OHW355. Nylon-braided tangle-free cable and an ABS body designed for daily school-bag abuse.
• Best for calls → Belkin SoundForm Surround. Built-in mic with environmental noise cancellation; the acer has no microphone specified.
• Best for zero-setup, zero-charging simplicity → acer OHW355. Plug the 3.5mm jack in and it works — no pairing, no battery, no app.
• Best for fit across ages → acer OHW355. 90-degree rotating ear cups and an adjustable headband tuned for children through teens; the Belkin's adjustable headband is aimed at adult head sizes.
If I were buying for myself, I'd take the Belkin SoundForm Surround (ASIN B0DW6FSN1N). Sixty hours of battery, Bluetooth 5.4 multipoint, active noise cancellation and a foldable over-ear shape cover the widest range of real days — commute, desk, flight, calls — and the 3.5mm jack and included AUX cable mean it still works when the battery runs out. In my opinion, the acer OHW355 is the better buy for exactly one job: a child who needs a hard volume ceiling, a cable that won't tangle or snap, and a headphone that just plugs in. If that's your situation, buy the acer and don't look back. Everyone else should buy the Belkin. Either way, check the current price on Amazon before you commit.
what are foldable headphones
Foldable headphones are over-ear or on-ear models whose ear cups hinge inward or rotate flat so the whole unit collapses into a smaller, flatter shape. Both headphones here qualify — the Belkin SoundForm Surround folds for travel, and the acer OHW355 combines folding with 90-degree rotating ear cups. The point is easier packing and less bulk in a bag.
how to fold foldable headphones
Grip the headband in one hand and rotate each ear cup inward on its hinge until the cups sit flat against the band, then tuck them into a case or bag pocket. On the acer OHW355 the cups also swivel 90 degrees, so you can lay them flat rather than fully collapsed. Don't force past the hinge stop — the fold direction is fixed by the design.
how to fold headphones
On most folding designs, the correct motion is cups inward toward the headband, never outward, because the hinge only travels one way. If the cups rotate but the band doesn't collapse, you have a swivel-and-lay-flat design like the acer OHW355 rather than a true folder. Store them folded or flat, not twisted, to protect the hinge and cable entry points over time.
how to fix foldable headphones
Most foldable-headphone problems are mechanical: a hinge that's come loose, a cable that's frayed at the jack, or a headband that's cracked. Check the cable first on the wired acer OHW355 — a nylon-braided cord is tougher than PVC but not indestructible — and check the hinge screws and pivot points on the Belkin. If the driver or battery has failed, both carry a manufacturer limited warranty, two years for Belkin and one year for Acer.
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See also: Skullcandy S2RLW-Q786 vs Belkin SoundForm Anywhere Ultra-Compact, BANIGIPA Headset vs Acer Headset: Headphones with Mic, FOXXRAY BA-68 vs Redragon H260: Surround Sound Gaming