How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-04 · 7 min read · Independent comparison
• CozyPhones PJ Masks Catboy — biggest strength: an officially licensed Catboy-themed fleece headband with thin built-in speakers capped at 90 dB, a washable band, and a 52-inch braided cord that resists kinking and twisting.
• CozyPhones PJ Masks Catboy — biggest trade-off: it is a wired 3.5 mm product with no noise control and no stated warranty, and it is sized and styled for kids rather than adults.
• SUPWISER Costume Antennae Headband — biggest strength: green silicone antennae on a soft fabric-wrapped band with adjustable straps that are designed to clamp onto most standard headbands and headphones.
• SUPWISER Costume Antennae Headband — biggest trade-off: it produces no sound at all. It is a costume accessory, not a listening device, and it is spot clean only.
• Who CozyPhones is for: a parent buying a first pair of headphones for a young child who refuses earbuds or bulky over-ear cups.
• Who SUPWISER is for: a cosplayer, partygoer or parent finishing a green-alien or bug-themed costume, possibly by decorating headphones they already own.
The CozyPhones PJ Masks Catboy is a pair of headphones disguised as a piece of clothing. The speakers are thin and sit inside a soft fleece headband rather than pressing into the ear canal or clamping around the skull. That design choice solves the two most common complaints parents have about kids' audio gear: earbuds that won't stay in and over-ear cups that slide around on a small head. The band is stretchy, and because it wraps the head flat, CozyPhones states it won't interfere with a car seat headrest or an airplane seat — which is why it can also be flipped down and used as a sleep mask.
The other half of the pitch is hearing protection. The built-in volume-limiting circuitry keeps output at or below 90 dB, which CozyPhones describes as the recommended safe level for young children's ears. That matters for the exact scenario this product is built around: a child wearing headphones for a long stretch, whether that's a school tablet session, a flight, or a quiet library visit where you want them occupied without the volume creeping up. The 3.5 mm stereo plug covers most phones, tablets and laptops, and the 52-inch braided cord is specified to resist kinking and twisting under normal use.
SUPWISER Costume Antennae Headband: Who It's For
The SUPWISER Costume Antennae Headband is not headphones, and that's the single most important thing to understand. It's a costume piece: two green silicone antennae mounted on a fabric-wrapped band, with adjustable straps designed to attach the whole thing to most standard headbands and headphones. In other words, its "universal fit" claim is about fitting other things, not about fitting your head with sound.
The build is straightforward. The antennae tips are silicone, the band portion is wrapped in fabric, and SUPWISER describes the installation as a simple five-step process laid out in the included instructions. The band measures about 5.51 inches across, and it's listed as one size fitting most, with a department tag of women even though the description frames it as suitable for adults generally. It's lightweight — around 2.4 ounces — so wearing it for a long party or a full evening of trick-or-treating shouldn't feel burdensome. Care is spot clean only with a damp cloth, which tells you the fabric wrapping isn't meant for a washing machine.
Who should buy it: anyone building a green alien, insect or creature costume who wants the antennae silhouette without crafting it from scratch. It's also genuinely clever for a specific crossover use case — strapping the antennae onto a pair of headphones you already own to make a wearable character look. Who should skip it: anyone who actually wants to listen to something. There are no speakers, no drivers, no cable and no audio path of any kind here. If you're searching for headphones for a library, a study session or a gaming setup, this product cannot help you, no matter how the listing reads at a glance.
• Best for actual listening → CozyPhones PJ Masks Catboy. It has real dynamic drivers, a 20 Hz–20,000 Hz frequency range and a 32-ohm impedance.
• Best for hearing safety with young kids → CozyPhones PJ Masks Catboy. The 90 dB volume limit is the core design feature.
• Best for a costume or themed party → SUPWISER Costume Antennae Headband. Silicone antennae and a fabric-wrapped band are built for dressing up, nothing else.
• Best for decorating headphones you already own → SUPWISER Costume Antennae Headband. The adjustable straps are specifically designed to attach to standard headbands and headphones.
• Best for washing → CozyPhones PJ Masks Catboy. The fleece band is described as washable; the SUPWISER piece is spot clean only.
• Best for travel and sleep → CozyPhones PJ Masks Catboy. The flat band is stated not to interfere with car seat or airplane headrests, and it can double as a sleep mask.
• Best for a wireless setup → neither. CozyPhones runs on a 3.5 mm wired jack, and SUPWISER has no electronics at all.
• Best for adults who want something to wear themselves → SUPWISER Costume Antennae Headband. The CozyPhones design is explicitly aimed at kids.
For a child who needs to actually listen — in the car, on a plane, during a school session or in a library — I would buy the CozyPhones PJ Masks Catboy. In my opinion the combination of a washable fleece band, a 90 dB volume cap and a durable 52-inch braided cord is exactly what a first pair of kids' headphones should be, and the sleep-mask trick is a genuinely useful bonus. I would only choose the SUPWISER Costume Antennae Headband if my goal were purely cosmetic: finishing a green-alien costume or clipping antennae onto an existing set of headphones for a themed look. It's a fun accessory, but it will never play a single note.
It depends which product you mean. On the CozyPhones PJ Masks Catboy, the band is the headphone — the thin speakers sit inside the fleece and there's nothing to reattach, so if the audio cuts out the likely culprit is the 3.5 mm plug or the braided cord. On the SUPWISER antennae headband, "fixing" means tightening the adjustable straps so the accessory sits securely on your existing headband or headphones, following the five-step instructions included in the box.
Are these good headphones for a library?
Yes — that's precisely what the adjustable straps are designed for. SUPWISER specifies the antennae attach to most standard headbands and headphones, so you can clip them onto a gaming headset or a regular pair of cans to make a costume look. Just remember the antennae add look, not sound. For a themed gaming setup you'd still need the headset itself to be a real, working model.
Only in the sense that both use the word "headband." The CozyPhones PJ Masks Catboy is functional kids' audio with drivers, a cable and a volume cap. The SUPWISER Costume Antennae Headband is a decorative silicone accessory with no electronics. Buy the CozyPhones if you want sound; buy the SUPWISER if you want a costume topper. Before deciding, check the current price on Amazon for whichever one matches your actual need.
As an Amazon Associate I earn from qualifying purchases.
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.
When you buy through links on this page, we may earn a commission from qualifying purchases at no extra cost to you.
Amazon and the Amazon logo are trademarks of Amazon or its affiliates. This site is an independent third-party review and is not affiliated with, endorsed by, or sponsored by Amazon or the product brands mentioned.
See also: SONTINH CoolBuds2 vs diujzld AI Language Translator, TECKNET Trucker vs Alpine Hearing Protection Muffy Baby Ear, our Generic Open Ear vs Hamwesh Hanging Earbuds pick, LUDOS OMNITONE vs XIAOWTEK Earbuds: Ergonomic Earbuds