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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-06 · 6 min read · Independent comparison
• Lnauy Universal 5V — biggest strength: one compact 10 W USB-C charger with a 5 ft cable that covers a long list of USB-C earbuds, speakers and phones, plus built-in surge, over-current, over-voltage, short-circuit and over-temperature protection.
• Lnauy Universal 5V — biggest trade-off: it is a 5 V / 2 A charger only, and it will not fit Micro-USB devices at all — you have to check your connector.
• Razer Kitty Ears V2 — biggest strength: an easy clip-on design with retractable 105 mm adjustable straps and lightweight 26 g silicone that stays put on a headset band instead of sliding around.
• Razer Kitty Ears V2 — biggest trade-off: it is purely decorative. It adds zero sound, zero battery and zero function — and the headset band needs to measure roughly 25 mm to 40 mm in diameter to fit.
• Who each pick is for: Lnauy for the person charging a bag full of USB-C audio gear; Razer for the gamer who wants their headset to look like their personality.
The Lnauy Universal 5V is a 10 W USB-C wall charger with a permanently attached 5 ft (1.5 m) cable in black plastic. Input is AC 100–240 V at 50/60 Hz, so it works on North American and overseas outlets, and output is DC 5 V 2 A. That's a single-port, single-power-level brick — simple by design, and that's the point.
What it does best is cover a lot of ground. The compatibility list runs from Beats Flex headphones, Beats Studio Buds and Beats Fit Pro, through JBL Charge 4, JBL Flip 5, JBL JRPOP and JBL Endurance Peak speakers, and on to phones like the Samsung Galaxy S8/S8 Plus, S7/S7 Edge, LG G5/G6/V10/V20, Huawei P9/P10 Plus/Mate 9/Honor 8, HTC 10, Google Pixel, Nexus 6P/5X, plus Verizon MiFi Jetpack 7730L and 8800L hotspots. If your gear lives on USB-C, there's a good chance this covers it.
The durability story is worth noting too. The housing is described as firmly designed with high-quality wiring that resists being pulled out, and the hard shell is meant to shrug off scratches, abrasions, collisions and drops. For anyone stuffing a charger into a backpack next to a ball and a water bottle, that matters more than spec-sheet glamour. It also ships with a 12-month service window from the brand.
Who should skip it: anyone with Micro-USB devices — the product explicitly does not fit Micro-USB ports, so check your connector first. If you need more than 10 W or multiple ports, this isn't the one.
Razer Kitty Ears V2: Who It's For
Razer Kitty Ears V2 is a pair of clip-on silicone ears in Quartz Pink, sized 156 mm x 70 mm x 25 mm and weighing in at roughly 26 g (0.07 kg). They snap onto a headset band using adjustable, retractable 105 mm straps that can be fastened around any part of the band, so you can position them where they look right rather than where the mold happened to sit.
The materials are the interesting part. The ears are silicone, waterproof and dustproof, and the whole point of the low weight is that you can wear them for hours without the headset suddenly feeling top-heavy. For a long gaming session — or, frankly, for a kid who wants their headset to look like a cartoon character's — that balance matters.
Compatibility is broader than the Razer-only name suggests. Razer tested them to fit the BlackShark, Kraken, Barracuda and Opus lines, and the stated fit range is a headset band diameter of 25 mm to 40 mm. Outside that window, all bets are off. They also come with a 2-year manufacturer warranty.
Who should buy it: anyone who wants to personalize a headset they already like, and whose band falls in that 25–40 mm range.
Who should skip it: if you're chasing audio quality, comfort padding or battery life, this does none of that — noise control is listed as none, and it's an accessory, not a headset. If your band is unusually thin or unusually chunky, measure before you commit.
• Best for charging a mixed USB-C kit → Lnauy Universal 5V. Earbuds, speakers, phones and hotspots, all on one 5 ft cable.
• Best for customizing a gaming headset → Razer Kitty Ears V2. Aesthetic upgrade only, but a genuinely well-executed one.
• Best for travel → Lnauy Universal 5V. 100–240 V input plus a 5 ft cable that doesn't separate from the brick.
• Best for long sessions → Razer Kitty Ears V2. 26 g of silicone is light enough that you forget it's there.
• Best for outdoor or sweaty environments → Razer Kitty Ears V2. Waterproof and dustproof silicone holds up better than you'd expect from a cosmetic accessory.
• Best for a kid's first headset setup → Razer Kitty Ears V2. Especially if it's a kids headset for basketball-court downtime between games, where the look is half the fun.
• Best if you're unsure about your device → Lnauy Universal 5V. As long as it's USB-C, not Micro-USB.
• Best if you're unsure about your headset band → Razer Kitty Ears V2. Measure the band; if it's 25–40 mm, you're in range.
In my opinion, the Lnauy Universal 5V is the more broadly useful purchase — it solves a real, recurring problem (keeping USB-C audio gear charged) with protection circuitry and a cable that won't quietly die on you. I'd pick it without hesitation for a basketball bag, where a charger gets thrown around and needs to just work.
That said, the Razer Kitty Ears V2 isn't competing on utility and doesn't pretend to. If your goal is expression — and you've already got a headset with a 25–40 mm band — it's the more fun buy, and the light silicone build makes it a low-risk one.
what is universal headphones
"Universal headphones" isn't a formal product category — it's shoppers' shorthand for headphones or headset accessories designed to work across many brands rather than one. In this comparison, the Razer Kitty Ears V2 uses exactly that framing: a universal-fit clip-on accessory tested to fit multiple headset lines, with a stated band diameter range of 25–40 mm.
what are universal headphones
Usually it means gear that isn't locked to a single manufacturer. The Lnauy Universal 5V fits the same idea from the charging side — one 5 V / 2 A USB-C charger covering Beats, JBL, Samsung, LG, Huawei, Google, HTC and Nexus devices, among others. Neither product is brand-locked in the way a proprietary accessory would be.
are headphones universal
Physically, no. Wired headphones typically use a 3.5 mm jack, and the Razer Kitty Ears V2 lists exactly that connector type — but headset bands, ear cup sizes and charging ports vary. That's why the Kitty Ears V2 specifies a 25–40 mm band range, and why the Lnauy charger warns that it fits USB-C only and not Micro-USB.
are gaming headphones universal
Gaming headsets are generally not universal in fit or connection, though many share a 3.5 mm jack. Accessories are where universality actually shows up: the Razer Kitty Ears V2 was tested across the BlackShark, Kraken, Barracuda and Opus lines and is described as a universal fit for most headsets within that 25–40 mm band range. For charging, a universal USB-C adapter like the Lnauy covers most modern gear — including bone conduction headphones for basketball, ear clip headphones for basketball, and standard earbuds alike.
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