How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want to keep using the wired headphones you already own with a Lightning iPhone, choose UGREEN Headphone Adapter; if you need kid-safe, volume-limited USB-C headphones for an iPhone 15 or 16, choose MEE audio KidJamz KJ55.
• UGREEN Headphone Adapter — biggest strength: Apple MFi certification plus 48 kHz / 24-bit audio output and in-line control support, so your existing 3.5mm headphones behave like a native Lightning headset.
• UGREEN Headphone Adapter — biggest trade-off: It is an adapter, not headphones. It does nothing on its own, and it is built for Lightning iPhones and iPads only — not the USB-C iPad mini 6 or USB-C iPad Pro.
• MEE audio KidJamz KJ55 — biggest strength: A built-in volume limiter that keeps sound pressure below the recommended 85 dB limit, with a switch to disable it in noisy places like a plane or a car.
• MEE audio KidJamz KJ55 — biggest trade-off: The 85 dB ceiling and 20 Hz–2,000 Hz frequency range mean this is a safe-listening headset first and a music headphone second. It also plugs into USB-C, not Lightning.
• Who each pick is for: UGREEN for any adult or teen who wants to revive a favorite pair of wired headphones on an older iPhone; KidJamz KJ55 for parents buying a first headset for a child aged 4+ with a USB-C iPhone or iPad.
The UGREEN adapter is a small grey cable — roughly 0.2 x 0.39 x 3.94 inches and 21 grams — with a Lightning plug on one end and a 3.5mm jack on the other. That is the entire product. Its job is to sit between the phone in your pocket and the headphones on your head and get out of the way.
What it does best is compatibility. It carries Apple MFi certification, which is the meaningful part of the spec sheet: it means the adapter is built to Apple's requirements rather than reverse-engineered, and it is listed as working across the Lightning iPhone line — 14 Pro Max, 14 Pro, 14, 14 Plus, 13 series, 12 series, 11 series, XS, XS Max, XR, X, 8 Plus, 8, 7 and SE 2020 — plus iPods, iPad 9, iPad mini, iPad Air and Lightning iPad Pro models. Audio output is rated up to 48 kHz at 24-bit, and the adapter supports in-line control, so the volume and mic buttons on a wired headset keep working. There is no app, no pairing and no settings screen; it is plug and play.
The build is worth noting for a part that lives in a bag. The shell is aluminum alloy, the cable is nylon-braided with enameled copper and a PVC jacket inside, and the listing cites a 15,000+ bend lifespan. The connector count is two — one Lightning, one 3.5mm — which is exactly what you would expect from a dongle.
Buy it if you own a Lightning iPhone or a Lightning iPad and you want to keep using wired headphones, a car aux cable, or a speaker without buying new audio gear. Skip it if your phone is USB-C — the iPhone 15, 16 and their Pro versions are not on the compatibility list, and neither are the USB-C iPad models. Skip it, too, if you are shopping for headphones rather than an adapter; this is a pass-through, not a listening device.
The KidJamz KJ55 is an actual pair of on-ear headphones in Lavender, aimed at children 4 and up. The headline feature is the volume limiter: the set is tuned to hold sound pressure level below the recommended 85 dB limit, which is the listening-safety figure parents tend to look for. A physical switch lets you disable that limiter temporarily — MEE audio frames this as a travel mode, for planes, cars and other noisy settings where a capped headset would simply be inaudible.
The rest of the design is clearly built around kids. Each ear cup has multicolor LED lights with 8 color patterns that light up the graphics, and they draw no batteries — a single press cycles colors and patterns, and a three-second press turns them off. There is a built-in microphone and a remote button for video chats, online classes, gaming and calls. The cable is tangle-resistant nylon with a reinforced connector, and the fit comes from padded earpads plus an adjustable cushioned headband.
On the audio side, the numbers tell you what this is: a 32-ohm dynamic driver with a 20 Hz–2,000 Hz frequency range and 85 dB sensitivity. That range is narrower than a typical adult music headphone, which is consistent with a safe-listening product — speech, lessons and games come through clearly, while deep bass and sparkly treble are not the point. It is a wired USB-C headset, so it pairs with the iPhone 16, 16 Pro, 15 and 15 Pro, iPads, Kindle Fire tablets, other USB-C phones and tablets, MacBooks and laptops. It ships with a user manual and a one-year manufacturer's warranty.
Buy it if you want one headset that works for school, calls and travel and that you do not have to police for volume. Skip it if you are buying for an adult, if you care about wide-range music reproduction, or if the device you want to use still has a Lightning port — this is USB-C only.
• Best for reviving existing wired headphones → UGREEN Headphone Adapter. It converts a 3.5mm plug to Lightning and preserves in-line controls.
• Best for safe listening for a child → MEE audio KidJamz KJ55. The 85 dB limiter is the whole reason to buy it.
• Best for Lightning iPhone or Lightning iPad owners → UGREEN Headphone Adapter. It is the only one of the two that lists Lightning compatibility.
• Best for iPhone 15 / 16 and USB-C devices → MEE audio KidJamz KJ55. USB-C audio is its native connection.
• Best for calls and video chat → MEE audio KidJamz KJ55, thanks to its integrated microphone and remote button. The UGREEN adapter can pass through an in-line mic on your headset, but it has no mic of its own.
• Best for travel with kids → MEE audio KidJamz KJ55, because the limiter switch can be turned off in loud environments.
• Best for build durability in a pocket → UGREEN Headphone Adapter, with its aluminum shell, nylon braid and cited 15,000+ bend lifespan.
• Best for audio fidelity on good headphones → UGREEN Headphone Adapter, rated up to 48 kHz / 24-bit output. The KidJamz caps out at 20 kHz frequency response with an 85 dB ceiling.
These two barely compete — they solve different problems, and that is the honest answer. In my opinion, if you already own a decent pair of wired headphones and a Lightning iPhone, the UGREEN Headphone Adapter is the smarter buy: it is MFi certified, it keeps your in-line controls working, and it costs far less than replacing your headphones. If you are buying for a child on a USB-C iPhone or iPad, I would pick the MEE audio KidJamz KJ55 — the 85 dB limiter and the travel-mode switch are features you cannot add to a normal headset after the fact. Check the current price on Amazon for whichever one matches your port, and let the connector decide for you.
how to use headphones for iphone
If your iPhone has a Lightning port, plug a Lightning-to-3.5mm adapter like the UGREEN into the phone and your wired headphones into the adapter — no settings needed, and in-line controls keep working. If your iPhone has USB-C, plug USB-C headphones such as the KidJamz KJ55 straight in, or use a USB-C audio adapter for 3.5mm gear.
how to use wired headphones for iphone 15
The iPhone 15 uses USB-C, so a Lightning adapter will not fit. The KidJamz KJ55 connects directly because it is a USB-C wired headset. For a standard 3.5mm pair, you would need a USB-C-to-3.5mm adapter instead of the UGREEN Lightning model.
how to use wired headphones for iphone 16
Same situation as the iPhone 15: the iPhone 16 is USB-C. The KidJamz KJ55 is listed as compatible with the iPhone 16 and 16 Pro. The UGREEN adapter's compatibility list stops at Lightning devices, so it is not the right part for this phone.
how to use wired headphones for iphone
First identify the port. Lightning iPhones (14 and earlier, plus SE) work with the UGREEN adapter and any 3.5mm headphones. USB-C iPhones (15 and 16) need USB-C headphones like the KidJamz KJ55 or a USB-C audio adapter. Neither setup requires an app or pairing.
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: tapaxis Earbud vs JKNKCO MS122, MUSICOZY Sleep Headphones vs Custom Personalized Initials Luxury, Proof Labs 4 vs Xmenha Open Ear Headphones: Over Ear Hook, ZIHNIC Headphones Over-Ear vs Sony WH-CH720