If you want one pair that covers homework, piano practice, wired tablet time and two kids sharing a screen, choose OneOdio A70; if you need the lighter, app-tunable everyday headphone with multipoint pairing and long battery, choose Sony WH-CH520. That's the honest short answer to this OneOdio vs Sony headphones comparison, and it holds up especially well when you're shopping for kid use — the place where these two designs split hardest. One is a studio-flavoured over-ear with real cables in the box. The other is a featherweight on-ear built around streaming and calls.
OneOdio A70 vs Sony WH-CH520 at a Glance
• OneOdio A70 — biggest trade-off: it's the heavier, bulkier option at around 300 g with a foldable over-ear frame, and the controls are physical buttons rather than touch.
• Sony WH-CH520 — biggest strength: a light on-ear build with up to 50 hours of battery, quick charging, multipoint pairing across two devices and EQ customisation in Sony's Headphones Connect app.
• Sony WH-CH520 — biggest trade-off: there is no headphone jack at all, so there's no wired fallback when the battery runs out, and on-ear pads press against the ears rather than around them.
• Pick the OneOdio A70 for a kid who plays an instrument, uses a school laptop with a headphone socket, or shares a screen with a sibling.
• Pick the Sony WH-CH520 for a kid or teen who mostly streams from a phone or tablet and wants something light enough to forget about.
The A70 is the more versatile tool of the two. Inside are 40mm neodymium dynamic drivers with a custom aluminium fascia, and the spec sheet backs up the "studio" positioning with a 32-ohm impedance, 110 dB sensitivity and a frequency response that stretches to 40 kHz. What matters for a family buyer isn't the numbers themselves, it's the flexibility they enable: this headphone is comfortable being plugged into things. The included dual-duty cable has both a 6.35mm and a 3.5mm end, so the same pair can go from a kid's tablet to a digital piano, a guitar amp or a mixing desk without an adapter hunt.
The sharing feature is the sleeper hit. You can pair the main headphones over Bluetooth or run a 3.5mm cable from a device, then daisy-chain a second pair of headphones into the A70 through the 6.35mm jack. Two kids, one tablet, one long car ride. Very few headphones at any level do this, and none of the obvious alternatives in this matchup do.
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-20 · 8 min read · Independent comparison
Comfort is built around long sessions: memory cotton cushions wrapped in protein leather, a rotatable over-ear design and a foldable headband that collapses into the included pouch. Physically it's the more substantial headphone — around 300 g — and that weight is the price of the bigger cups and the metal-and-plastic build. Battery life is quoted at up to 72 hours of music and calls, which is the longest figure in this comparison by a wide margin. Controls are tactile buttons, including a multi-function key you can long-press to wake Siri or another voice assistant, and there's an HD mic with noise isolation for calls.
Who should buy it: kids learning an instrument, anyone whose household still has a wired headphone socket in the mix, families who want one pair that doubles as a practice and study headphone, and beginners doing light DJ or studio work. The age range covers both adults and kids. Who should skip it: a kid who wants the smallest, lightest thing possible in a school bag, or someone who insists on touch controls and a companion app — the A70 gives you neither.
Sony's take is the opposite philosophy: strip out the wires, cut the weight, and make the software do the heavy lifting. The WH-CH520 is an on-ear design with swivel earcups, an adjustable headband, a soft head cushion and gentle ear pads, and the whole point is that it slips on and off without a fight. For a kid stuffing headphones into a backpack between classes, that swivel-and-fold behaviour matters more than driver size.
The headline number is up to 50 hours of playback, and the quick-charge behaviour is genuinely useful for forgetful users — a few minutes on the USB-C cable gets you a usable block of listening time. A full charge is quoted at around three hours. Multipoint connection lets the headphone hold two Bluetooth devices at once, so a kid can jump from a video on a laptop to a call on a phone without repairing. That's a small feature that changes daily behaviour once you're used to it.
Sound is tuned to taste rather than to a flat reference. The EQ Custom feature in Sony's Headphones Connect app lets you pick presets or build your own, and DSEE is there to upscale compressed streaming files. The spec sheet lists a 24-ohm impedance, 100 dB sensitivity and a 20 Hz–20 kHz range — a normal, portable-friendly load that any phone will drive easily. Controls are touch-based and voice-enabled, with wake words for Google Assistant or Siri, and there's a built-in mic for hands-free calls. Handy bonus: you can ring the headphones through Google's Find My Device if they disappear under a sofa.
Two caveats to weigh honestly. First, no headphone jack — if your kid's school laptop, keyboard or practice amp only talks analogue, this headphone can't help. Second, the on-ear fit and light clamping force mean isolation is modest and sound leaks a little at high volume, so it's a headphone for a quiet room at sensible levels rather than a loud bus. There's a one-year warranty, and the age range covers kids, teens and adults.
Side-by-Side: Which Should You Choose?
• Best for instrument practice and studio-adjacent use → OneOdio A70. The 6.35mm jack and dual-duty cable are the whole argument.
• Best for battery life → OneOdio A70 on raw endurance (up to 72 hours vs up to 50), but Sony WH-CH520 wins on charging convenience thanks to quick charge and USB-C.
• Best for two kids sharing one device → OneOdio A70. The daisy-chain jack is unique in this pairing.
• Best for a touch control wireless headset for library or study sessions → Sony WH-CH520. Tap and swipe controls plus voice wake mean less fumbling, though keep the volume moderate because on-ear pads leak.
• Best for wired reliability at school → OneOdio A70. Sony's lack of any jack is a real limitation for classrooms and older laptops.
• Best for lightweight, all-day comfort on a small head → Sony WH-CH520. The swivel on-ear design is easier to live with for long streaming sessions.
• Best for customising sound without extra gear → Sony WH-CH520. The EQ app is the difference-maker; the A70 gives you one tuning, straight from the drivers.
• If you were hunting a grey gaming headset → neither is grey (the A70 is sky blue; Sony offers Cappuccino plus five other colours), but the A70 is the one that actually connects to a gaming PC's audio chain without an adapter.
In my opinion, for kid use the OneOdio A70 is the safer buy. It's the headphone that keeps working when the situation changes — wired for a keyboard or school laptop, wireless for the tablet, and a second jack so a sibling can listen in. The 72-hour battery and over-ear padding suit long homework sessions, and the foldable frame survives being crammed into a bag.
I'd point you to the Sony WH-CH520 instead if the kid in question is a phone-first streamer who wants the lightest possible fit, app-based EQ and multipoint switching, and never touches a cable. Pick the A70 for a kid who plugs into things; pick the Sony for a kid who streams. Before you commit either way, check the current price on Amazon — the value calculation shifts more than the specs do.
For most kids, the OneOdio A70 — it offers wired and wireless listening, a shareable second jack and longer battery. The Sony WH-CH520 is the better pick for an older kid or teen who only streams from a phone and wants the lightest fit.
No. They're Bluetooth-only, charged over USB-C, so there's no analogue fallback. If a school laptop, keyboard or amp needs a 3.5mm plug, the OneOdio A70 is the one that works.
The A70 is quoted at up to 72 hours of music and calls; the WH-CH520 at up to 50 hours. Sony offsets that with quick charging, which gives you a usable playback block from a very short top-up.
No — treat that idea carefully. The A70 is listed with sound isolation only, and the Sony is a light on-ear whose seal is modest. Neither is hearing protection, so for job-site noise you want proper earmuffs rather than either of these.
• our VSuRing 3 vs Kasiden Earplug Lanyard 2: Sec pick
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.