If you want wireless convenience and long battery life for kids wireless, choose JBL Tune 520BT; if you need a simple wired pair with no battery to manage, choose Sony ZX Series. The JBL is the clearer fit for cordless listening and calls, while the Sony keeps things straightforward with a 3.5 mm connection and swiveling earcups.
• JBL Tune 520BT strength: Bluetooth 5.3, app-based EQ, and up to 57 hours of battery life. Trade-off: it needs charging and has no headphone jack.
• Sony ZX Series strength: a wired 3.5 mm connection, cushioned earpads, and swiveling earcups for storage. Trade-off: its cable limits movement, and it has no microphone.
• Sound options: JBL lets you adjust EQ through its app; Sony lists a 12 Hz–22 kHz frequency range and a closed-back design.
• Portability: JBL folds flat; Sony’s earcups swivel and fold for easier storage.
• Choose JBL if you want wireless listening, onboard call controls, and fewer battery-management worries between charges.
• Choose Sony if you prefer a direct wired connection and don’t need Bluetooth or hands-free calls.
The JBL Tune 520BT is the practical pick if you want on-ear headphones without a cable trailing from your device. It connects over Bluetooth 5.3, and its listed battery life reaches up to 57 hours. JBL also includes a USB-C charging cable and says a five-minute charge can add three hours of music. That combination suits long stretches of listening, travel, and routines where remembering to charge every day would be a nuisance.
The sound is built around JBL’s Pure Bass tuning, and the JBL Headphones app offers EQ adjustments if you want to shape the sound to your taste. Buttons on the earcup handle calls and playback, while Voice Aware lets you hear your voice during a call. That makes the Tune 520BT the more versatile choice for someone who moves between music and phone conversations. Its flat-folding design also makes it easier to tuck into a bag than a rigid, non-folding pair.
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-22 · 6 min read · Independent comparison
For kids wireless use, the JBL has an obvious convenience advantage: there’s no cable to snag or drag around. It also has no headphone jack. Skip it if you specifically want a wired connection, don’t want to recharge headphones, or need a model with listed noise control; the JBL’s noise-control field says none.
The Sony ZX Series is for someone who wants a basic wired headphone and would rather plug in than keep track of battery life. Its 3.5 mm stereo plug connects directly to a compatible audio jack, and the cable is listed as 3.94 feet long. There is no Bluetooth, so it won’t provide wireless freedom, but it also doesn’t need charging to play audio.
Sony lists 30 mm dynamic drivers, a 12 Hz–22 kHz frequency range, cushioned earpads, and a closed-back design. The swiveling, folding earcups help the headphones pack away for travel. This is a sensible fit for listening at a desk, watching something on a device with a headphone jack, or keeping a simple pair on hand for a wired audio source.
The trade-offs are just as clear. Sony lists no microphone, so it is not the right pick if you want to take hands-free calls through the headphones. The cable also means you need to stay within its reach, and the model has no listed app-based EQ. If a device lacks a compatible 3.5 mm jack, check what connection options it supports before choosing the Sony. For a child who moves around while listening, the JBL’s wireless connection may be easier to live with.
• Best for wireless listening → JBL Tune 520BT. It connects over Bluetooth 5.3; the Sony is wired.
• Best for fewer charging interruptions → JBL Tune 520BT. Its listed battery life is up to 57 hours, though it still needs recharging eventually.
• Best if you want to avoid batteries altogether → Sony ZX Series. It draws audio through a 3.5 mm cable and has no wireless battery to charge.
• Best for calls → JBL Tune 520BT. It supports hands-free calls with earcup controls and Voice Aware; Sony lists no microphone.
• Best for changing the sound profile → JBL Tune 520BT. Its companion app provides EQ adjustment. Sony’s sheet does not list a sound-customization app.
• Best for a direct connection to a compatible headphone jack → Sony ZX Series. Its 3.5 mm plug avoids Bluetooth pairing, but the device needs the right port.
• Best for packing away → A close call. JBL folds flat, while Sony’s earcups swivel and fold. The more useful design depends on how you plan to store them.
• Best for kids wireless → JBL Tune 520BT. Cord-free listening is the key advantage, but it has no listed volume limiter, so that feature should not be assumed.
The same distinction matters for “best multipoint wireless earbuds for Zoom calls.” The JBL supports wireless listening and hands-free calls, but multipoint pairing is not listed in its features. Sony has no microphone and is wired. If simultaneous connections or a particular call setup matters, don’t infer support from the Bluetooth connection alone.
My Verdict
I’d choose the JBL Tune 520BT for everyday listening because Bluetooth, long listed battery life, EQ adjustments, and call controls make it the more flexible of these two. That is my pick for kids wireless when the priority is avoiding a cable, with the caveat that no volume limiter is specified. I’d choose the Sony instead if I wanted a simple wired pair and knew my audio device had a 3.5 mm jack.
Yes. It connects to devices through Bluetooth 5.3, so it can stream audio without a headphone cable. It still uses a USB-C cable for charging.
No battery or charging requirement is listed. It uses a wired 3.5 mm plug, so it needs to be connected to a compatible audio jack to play sound.
The JBL is the clearer choice for calls because it supports hands-free calling, has earcup controls, and includes Voice Aware. Sony lists no microphone, so its headphone features do not cover hands-free calls.
The Sony can connect to a TV with a compatible 3.5 mm headphone jack. The JBL can connect wirelessly over Bluetooth, but whether that works depends on the TV’s Bluetooth audio support; the product information does not list a TV-specific feature.
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