We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-04 · 6 min read · Independent comparison
If you want a safe, kid-friendly pair with a hard volume ceiling and active noise cancelling for school, choose MIDOLA Kids; if you need marathon battery life and switchable EQ for long study and commute days, choose URBAN SWING URBANSWING B1. Both run a 40mm dynamic driver, but they aim that driver at completely different listeners. One is built to protect young ears. The other is built to outlast your week.
• MIDOLA Kids strength: Safe volume limit (85/94dB) plus Active Noise Cancelling, a 4-level adjustable headband and a foldable body that grows with a child.
• MIDOLA Kids trade-off: Its 88dB sensitivity and volume-capped output mean it will not get as loud as a standard adult headphone — by design.
• URBAN SWING URBANSWING B1 strength: Up to 120 hours of playtime, 4 EQ modes (Default, Balanced, Bass Boost, Vocal) and a 33 ft wireless range.
• URBAN SWING URBANSWING B1 trade-off: No Active Noise Cancellation (only passive isolation), and it is explicitly sized for ages 16+ — not for young kids.
• Pick MIDOLA Kids if: you are buying for a toddler, kid or teen, or an adult with sensitive ears who wants a protected volume ceiling.
• Pick URBAN SWING URBANSWING B1 if: you are 16+ and want long battery life, EQ control and a travel pouch for school, work or flights.
MIDOLA Kids is the pick when the person wearing the headphones should not be able to turn the volume up past a safe point. The 40mm dynamic drivers deliver crisp, balanced audio for music, online classes and videos, and the built-in microphone keeps voice pickup clear for calls with parents, friends or teachers during learning apps. That combination is exactly what a school day asks for: listening, talking, and not blasting young ears.
Who should skip it? Anyone who wants a loud, bass-forward listening session. Even at the max 94dB setting, the output stays roughly 15% lower than typical adult headphones. That is the whole point of the product, but it is a real limitation if you want volume. It also comes in pink with DIY cartoon stickers and a parent quick-start guide — a kids-first package, not a neutral adult one.
URBAN SWING URBANSWING B1: Who It's For
URBAN SWING URBANSWING B1 is for the older listener who treats headphones as a tool for a long day. The 40mm dynamic driver is paired with four EQ modes — Default, Balanced, Bass Boost and Vocal — so you can push bass for entertainment or pull vocals forward for lectures and podcasts without changing headphones. The 40mm driver size is spelled out in the spec sheet, and the tuning options are what actually make it flexible.
Battery is the headline. Up to 120 hours of playtime per charge is a genuinely different category from most wireless over-ears, and it is aimed at commuters, frequent flyers and remote workers who do not want to recharge constantly. Bluetooth reaches 33 feet (10 m), and button controls handle volume, hands-free calls and voice assistant access.
Comfort and travel get real attention too. Memory foam cushions and a closed-back design give passive noise isolation without the pressure of ANC. The rotatable earcups fold compact for backpacks and carry-ons, and a velvet pouch protects them in transit. The item weight is 7.36 ounces, so it is a substantial over-ear rather than a featherweight.
Who should skip it? Children under 16, anyone who specifically needs Active Noise Cancellation, anyone chasing studio-monitor accuracy, and anyone doing high-intensity sports that need water resistance. The brand says so directly. Sensitivity is listed at 108dB, which tells you it plays loud — a poor match for a young child's ears.
• Best for young kids and school → MIDOLA Kids. The 85/94dB safe volume limit and 4-level headband are built for exactly that.
• Best for battery life → URBAN SWING URBANSWING B1. Up to 120 hours versus 68 hours.
• Best for noise cancelling → MIDOLA Kids. It has Active Noise Cancellation; the B1 relies on passive isolation only.
• Best for sound customization → URBAN SWING URBANSWING B1. Four EQ modes versus a fixed kid-safe tuning.
• Best for sweat-resistant sleep and study use → URBAN SWING URBANSWING B1. Plush memory foam cushions suit long, still sessions — though neither is rated for high-intensity sweating.
• Best for rotatable ear cups and a foldable headband for school → URBAN SWING URBANSWING B1. Its earcups rotate and fold into a velvet pouch.
• Best for travel with a child → MIDOLA Kids. ANC plus a foldable body and sticker pack make it the more forgiving travel companion.
• Best for a teen or adult with sensitive ears → MIDOLA Kids. The volume ceiling is the feature, not a flaw.
For a child heading to school, I would buy MIDOLA Kids. The safe volume limit, ANC, adjustable headband and 68-hour battery line up with what a parent actually needs, and the 40mm driver still delivers clear audio for classes and calls. For myself, or any listener 16 and up, I would buy URBAN SWING URBANSWING B1 — 120 hours of playtime and four EQ modes are hard to argue with for school, work and travel. In my opinion, the deciding question is simple: are you protecting a young listener, or equipping an older one? Check the current price on Amazon before you commit.
FAQ
what is 40mm driver in headphones
what are 40mm drivers in headphones
They are dynamic speaker drivers measuring 40mm across, and they move air to create sound. On the B1, that driver is paired with four EQ modes; on MIDOLA Kids, the same driver size is tuned to a safe 85/94dB volume ceiling instead of maximum loudness.
which driver is best for headphones
There is no single best driver size — it depends on tuning and purpose. A 40mm dynamic driver is a solid middle ground: large enough for decent bass and stereo imaging, small enough to keep the headphones light. Both headphones here use one, so the real difference is how each brand tunes it.
is 40mm driver good for headphones
Yes, 40mm is a good all-round size for over-ear headphones. It handles music, video and calls well. Whether it suits you depends on the tuning: MIDOLA Kids caps output for safety, while URBAN SWING URBANSWING B1 pushes louder with 108dB sensitivity and EQ modes.
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