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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-02 · 7 min read · Independent comparison
These two look like they belong in the same search results, but they are not the same kind of purchase at all. One is a repair part. The other is a whole headphone. That single fact decides almost everything below.
• Sumugaric Live 500BT — biggest strength: memory foam ear cushions with a faux leather cover, made specifically to fit the JBL Live 500BT and Live 500BTNC, so you keep the headphones you already own instead of replacing the whole set.
• Sumugaric Live 500BT — biggest trade-off: it is an accessory only. The headphone is not included, there is no battery, no Bluetooth and no drivers in the box — just two replacement cushions.
• Kinglucky UPGRADE Noise Cancelling — biggest strength: a full wireless headphone built around memory foam ear cups, with active noise cancellation, Bluetooth 5.3, 40mm dynamic drivers and a foldable frame.
• Kinglucky UPGRADE Noise Cancelling — biggest trade-off: it is a complete headphone, so it is the wrong buy if all you need is a fresh set of pads for JBL cans you already like.
• Who each pick is for: Sumugaric for owners of JBL Live 500BT / 500BTNC whose pads are worn flat; Kinglucky for anyone who needs a working pair of noise cancelling over-ears from scratch.
This is a two-piece replacement kit. You get two ear cushions in red, built with memory foam and wrapped in faux leather. No headphone, no cable, no charging brick. That is the whole product, and once you accept that, it makes a lot of sense.
The pitch here is straightforward: the pads are shaped to be compatible with the JBL Live 500BT and the Live 500BTNC. If you own either of those, you already have a Bluetooth headphone you presumably like. What usually dies first is not the electronics — it is the foam. It compresses, the cover cracks, the seal against your ear goes soft, and suddenly a perfectly good headphone feels tired. Sumugaric's answer is to swap the cushions rather than the headphone. Sumugaric rates the pad set for a one-year warranty, which is a reasonable signal that the cover and foam are meant to hold up to daily wear.
The memory foam is the real story for me. Memory foam over ear headphones live and die by the cushion, because that cushion is what distributes clamp force across the side of your head and around your ears. A firm, cheap foam concentrates pressure; a conforming foam spreads it. That is the difference between finishing a two-hour album and pulling the headset off after twenty minutes. Sumugaric leans on that idea directly — soft, conforming, built for extended listening.
Buy it if: you own JBL Live 500BT or Live 500BTNC headphones and the pads are flat, flaking or uncomfortable. This is the cheaper, smarter move than replacing working hardware.
Skip it if: you do not own those JBL models, or you actually need a headphone. There is no headphone in this box — it is explicitly a repair part. Also skip it if you want a particular color scheme and red does not suit your setup; that is the only finish listed.
Now the opposite end of the spectrum. The Kinglucky B900 is a finished, wearable product: an over-ear Bluetooth headphone in black with a foldable frame, a 3.5mm jack for wired listening, and a USB-C charging cable in the box.
The headline feature is active noise cancellation. It is switchable — on for quiet focus on a plane, train or open-plan office, off when you want to hear what is happening around you. There is also passive isolation working alongside it, which is really just the physical seal of the ear cups doing its job. That combination matters more than people expect: the memory foam cushions conform to your ears, and the manufacturer specifically calls out comfort for people who wear glasses, which is usually where over-ear designs fail first.
Sound comes from 40mm dynamic drivers with a frequency range of 20 Hz to 20,000 Hz, 32 ohm impedance and 112 dB sensitivity. In plain terms, that is a full-range driver with a low-end tilt — Kinglucky markets it as booming bass with clear highs, and the driver size is consistent with that claim. Bluetooth 5.3 handles the wireless side, with a stated range of up to 15 meters, so you can leave your phone on the desk and walk around.
Battery life is listed at up to 30 hours, with USB-C charging. A high-sensitivity microphone with background noise reduction handles calls and online meetings. Controls are button-based with touch input also mentioned, and the ear placement is listed as on-ear with a circular earpiece shape — worth noting, because that affects how it sits versus a fully circumaural fit.
Buy it if: you need one headphone for commuting, the office, travel and calls, and you want ANC, deep bass, wired backup via 3.5mm, and a foldable shape that packs away easily. Comfort for glasses wearers is a genuine plus.
Skip it if: you only needed replacement pads, or if you already own a headphone you love and just want to refresh it.
• Best for reviving headphones you already own → Sumugaric Live 500BT. It exists purely to refresh JBL Live 500BT / 500BTNC pads.
• Best for noise cancellation → Kinglucky UPGRADE Noise Cancelling. Switchable ANC plus passive isolation; Sumugaric has no electronics at all.
• Best for battery life → Kinglucky UPGRADE Noise Cancelling. Up to 30 hours of playtime, charged over USB-C.
• Best for sound hardware → Kinglucky UPGRADE Noise Cancelling. 40mm dynamic drivers, 20 Hz–20 kHz, Bluetooth 5.3, 15 m range.
• Best for glasses wearers and long sessions → Kinglucky UPGRADE Noise Cancelling. The memory foam cups are explicitly designed to go easy on frames.
• Best for travel and packing → Kinglucky UPGRADE Noise Cancelling. It folds; Sumugaric pads do not fold because there is nothing to fold.
• Best for a quick, low-effort fix → Sumugaric Live 500BT. Two cushions, straightforward install, no pairing, no charging, no setup.
• Best for wired listening → Kinglucky UPGRADE Noise Cancelling. It ships with a 3.5mm audio cable.
If you already own JBL Live 500BT or Live 500BTNC headphones and the pads are the problem, I would buy the Sumugaric Live 500BT. Fixing the cushion is the part that restores comfort, and it keeps a working headphone out of the drawer.
If you do not own a headphone yet, or you want ANC, bass, Bluetooth 5.3 and a foldable travel design in one purchase, I would buy the Kinglucky UPGRADE Noise Cancelling instead. In my opinion it is the only one of the two that actually plays music — and that is the deciding factor. Check the current price on Amazon for whichever one matches your situation.
can you sleep with over ear headphones
It is possible but not ideal. Both of these are built for listening sessions, not sleep — the Kinglucky B900 has a rigid foldable frame and button controls that will press against a pillow, and the Sumugaric pads are a replacement part for a headphone that still has the same frame. Side sleepers in particular will find over-ear designs uncomfortable. If you must, back sleeping is the more realistic option.
how to wear over ear headphones
Put them on with the headband resting on top of your head, not pushed back on your neck, and make sure the L and R markings match your ears. Then adjust the headband sliders on each side until the cups sit centred over your ears. For the Kinglucky B900, the adjustable headband is designed to give a secure, personalized fit, so take a moment to get both sides even.
how to wear over ear headphones properly
The ear cup should surround or sit flush against your ear without pinching the top or bottom. The pads should seal gently — enough to block background sound, not enough to press hard against your glasses or jaw. If you wear glasses, the Kinglucky's memory foam cushions are specifically shaped to conform around frames. On the Sumugaric pads, a proper fit means the cushion sits evenly around the JBL cup with no gaps or twisting.
how should over ear headphones fit
Snug, even, and forgettable after a few minutes. Clamp force should be spread across the whole pad rather than concentrated at one point, which is exactly what memory foam is good at. The headband should not dig into the crown of your head, and the cups should not slide when you tilt your head. If you feel pressure within ten minutes, the fit is wrong — adjust the sliders before deciding the headphone is uncomfortable.
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