If you want wired, open-back headphones built around planar-magnetic audio for a child listening in a quiet room, choose HIFIMAN HE600; if you need wireless listening, active noise cancellation, and up to 30 hours of battery life for a child on the move, choose Bowers & Wilkins Px7. For children, neither is a rugged, waterproof kids’ model, so the deciding question is whether listening will happen in a calm space or a noisier, more mobile setting.
• HIFIMAN HE600: Open-back, wired planar-magnetic design, 28Ω impedance, and 94dB sensitivity; trade-off: no wireless connection or noise control.
• Bowers & Wilkins Px7: Wireless Bluetooth, adaptive noise cancellation, microphones, and up to 30 hours of battery life; trade-off: it relies on a battery for wireless listening.
• HIFIMAN HE600 is for a child who will listen at home with a compatible headphone amplifier and does not need isolation from surrounding sound.
• Bowers & Wilkins Px7 is for a family seeking one wireless over-ear pair for commutes, travel, calls, and other noisy settings.
• Neither sheet lists a child-specific fit, volume limit, or waterproof rating, so I would not treat either as a purpose-built children’s headphone.
The HE600’s defining choice is an open-back, wired design with a planar-magnetic driver. HIFIMAN pairs that driver with a second-generation Neo Supernano diaphragm and an enhanced magnet made without rare-earth permanent magnet materials. The listed frequency response is 8Hz–65kHz, with 28Ω impedance and 94dB sensitivity. Those specifications describe a headphone designed around audio reproduction, not convenience features such as Bluetooth, microphones, or noise cancellation.
For a child who mostly listens in a quiet room, the direct, wired setup could make sense if the family already has a suitable headphone amplifier. The HE600’s high-sensitivity design is described as working with standard headphone amplifiers, and HIFIMAN says it aims to recreate the sound signature of the HE6 when driven by a high-power amplifier. Its second-generation ergonomic headband reduces weight by 20g and uses rotatable hinges, a practical consideration for comfort and fit adjustment.
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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
The trade-offs matter more for everyday family use. At 389g, it is the heavier of these two models, and the open-back design offers no noise control. Its cable makes it less convenient for a child moving around, while sound can pass between the headphones and the room. I’d skip it if the main need is wireless convenience, listening on a commute, or keeping outside noise at bay. And because no child-specific fit, volume limiter, or waterproofing is listed, I would not choose it on the assumption that it is designed for children.
The Px7 S3 takes a more flexible approach: over-ear headphones with Bluetooth 5, a dynamic driver, active noise cancellation, and a microphone system with eight precision-tuned microphones. It also supports aptX Lossless and aptX Adaptive, and the specifications list a 20Hz–20,000Hz frequency range. For a household that wants a wireless pair for music, calls, movies, and games, it covers more situations without requiring a headphone amplifier.
Its strongest practical advantage is the combination of noise control and battery life. The listed battery life is up to 30 hours, and a 15-minute charge is said to provide seven hours of playback. A five-band EQ and adjustable noise cancellation are available through the Bowers & Wilkins Music app. For a child using headphones during a trip or in a busy household, wireless listening and the option to reduce ambient distractions are compelling features—though noise cancellation is not a substitute for adult supervision or hearing-safe listening habits.
The Px7 is also the lighter option at 0.3kg, compared with the HE600’s 389g. Its memory-foam ear cushions, lightweight headband, and fabric finish are aimed at comfortable wear, but the sheet does not establish that its fit suits every child. This is still an adult over-ear model, with no listed child-specific volume limit or waterproof rating. I would pass if the priority is an open-back planar-magnetic design for a quiet listening space, or if the family wants headphones explicitly made for children.
Side-by-Side: Which Should You Choose?
• Best fit for a quiet room and wired listening → HIFIMAN HE600. Its open-back, planar-magnetic design is the clear match for a stationary setup, provided you have a compatible headphone amplifier.
• Best for wireless everyday convenience → Bowers & Wilkins Px7. Bluetooth 5 avoids the HE600’s wired-only setup and gives the child more freedom to move.
• Best for reducing background distractions → Bowers & Wilkins Px7. It includes adaptive noise cancellation; the HE600 lists no noise control.
• Best for long stretches away from a charger → Bowers & Wilkins Px7. Its battery is specified for up to 30 hours, with a quick-charge feature.
• Best for calls and app-based adjustments → Bowers & Wilkins Px7. It includes microphones and app controls for a five-band EQ and noise-cancellation settings.
• Best choice if you’re seeking a spatial audio headphone for children → neither is identified as a spatial-audio model in the listed features. Choose based on the real needs here—wired open-back listening or wireless noise cancellation—not an assumed spatial-audio feature.
• Best choice if you’re comparing bone conduction headphones for children or the best IPX7 waterproof head phones for children → neither. Both are over-ear models, and neither sheet lists bone conduction or an IPX7 waterproof rating.
In my opinion, I’d choose the Bowers & Wilkins Px7 for a child if the family needs one versatile pair for travel, calls, and wireless listening. Its active noise cancellation, app controls, and stated battery life make it the more practical option for varied settings.
For children, though, I would not mistake convenience for child-specific protection: neither model lists a volume limiter, waterproof rating, or child-focused fit. If the child listens only in a quiet room and the family has a compatible amplifier, the HE600 is the more focused wired alternative.
FAQ
The Px7 is the more travel-oriented option because it connects over Bluetooth and includes adaptive noise cancellation. The HE600 is wired and has no listed noise control, making it a less convenient match for busy environments.
No IPX7 rating is listed for either model. I would not choose either on the assumption that it can be safely used in wet conditions.
That depends on which features matter to your household, and I can’t determine value from specifications alone. Check the current price on Amazon, then weigh the HE600’s planar-magnetic wired design against the Px7’s wireless connection, noise cancellation, microphones, app controls, and battery life.
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