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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want a hard-shell travel case that keeps Apple AirPods Max charged in sleep mode and shielded from drops, choose Yinke Case; if you need an actual pair of over-ear headphones that pulls in FM radio on the move, choose YUFFUN F5. These are two completely different products that happen to sit next to each other in a "portable headphones" search, so the right answer comes down to one question: are you protecting headphones you already own, or buying headphones to listen with?
• Yinke Case — biggest strength: A tailor-made EVA hard shell with a 1:1 internal groove for AirPods Max 1 and 2, plus a design that lets the headphones drop into sleep mode without the original Smart Case.
• Yinke Case — biggest trade-off: It is a case, not headphones. If you don't own AirPods Max, it does nothing for you — and the fit is built specifically around Apple's shape.
• YUFFUN F5 — biggest strength: It's a self-contained portable FM radio headphone: 50–108 MHz tuning, a 400mAh rechargeable battery, Type-C charging, and up to 24 hours of average playtime.
• YUFFUN F5 — biggest trade-off: It's a radio-first device. There's no Bluetooth listed in the specs — connectivity is a 3.5 mm aux jack — so it's wired playback plus FM, not a wireless streaming headphone.
• Buy Yinke Case if you already own AirPods Max and want one rugged organizer for daily commutes, gym bags and flights.
• Buy YUFFUN F5 if you want over-ear headphones with live FM radio for jogging, ballgames, weather and news, without pairing a phone.
The Yinke Case is built around one job: getting AirPods Max from point A to point B without damage. The shell is EVA — a hard, shock-resistant foam material — and it's lined with soft velvet over a point-shaped shockproof layer, so the headphones sit in a cushioned groove rather than rattling against plastic. External dimensions are 23.5 x 21.0 x 6.3 cm, with a stated compatible device size of up to 21.5 centimeters, and the internal space is described as a 1:1 build for the AirPods Max shape. In practice that means the earcups and headband rest where they were designed to rest, not jammed into a generic pouch.
The feature I find most practical is the sleep-mode trick. Apple's own Smart Case has a reputation for being minimal, and this Yinke version is explicitly designed to replace it — the case puts the headphones into an ultra-low-power state when they're inside, so you're not draining the battery between uses. The double zipper opens without pressure, and there's a handle on top, which is the detail that makes it genuinely portable rather than just protective. Waterproof, scratch-resistant and lightweight are also listed, so a rainy walk to the office or a crowded overhead bin isn't a disaster.
Who should buy it: AirPods Max owners who travel, commute, or just want a dedicated organizer instead of tossing premium headphones loose into a backpack. Who should skip it: anyone who doesn't own AirPods Max, or who wants a soft, collapsible pouch that squashes into a tiny pocket — this is a rigid, structured box, and that's the point. If your priority is a case that doubles as a stand for other brands, this isn't that product; the fit is Apple-specific by design.
The YUFFUN F5 is a different animal entirely. It's a pair of over-ear headphones with an FM radio receiver built in, tuned across 50–108 MHz — the full local US radio band. That range covers country music, talk shows, weather forecasts, regional news and live sports commentary, which is exactly the use case the design points at. Instead of streaming a game through your phone with a delay and a data connection, you tune the station directly.
The physical package is built for movement. It weighs a stated 5.7 ounces, folds down, and is meant to slip into a backpack. The earcups are oval and over-ear, made from ABS with soft earmuffs, and the controls are simple push buttons — no touch panels to fumble with while jogging. Battery is a 400mAh rechargeable lithium cell that charges fully in about 2 hours over Type-C and is rated for 24 hours of average life, so a week of short runs or a full day of errands is comfortably inside one charge.
Who should buy it: runners, walkers, radio listeners, sports fans who want live commentary, and anyone who wants a battery-powered FM receiver they don't have to pair. Who should skip it: wireless-streaming listeners and anyone expecting active noise cancellation or a case in the box.
Side-by-Side: Which Should You Choose?
• You already own AirPods Max and want protection → Yinke Case. The 1:1 internal groove and EVA shell exist for exactly that.
• You want headphones to listen with → YUFFUN F5. One product plays audio; the other only stores it.
• Best for battery life → YUFFUN F5. A 400mAh cell rated at 24 hours of average use, with a 2-hour Type-C recharge.
• Best for sleep-mode battery preservation → Yinke Case. It replaces the Smart Case and drops AirPods Max into ultra-low-power state.
• Best for travel and storage → Yinke Case. Hard shell, waterproof, scratch-resistant, double zipper and a carry handle.
• Best for jogging and outdoor radio → YUFFUN F5. 5.7 oz, foldable, over-ear, push-button controls.
• Best for live sports, weather and news without a phone → YUFFUN F5. Full 50–108 MHz FM band, no pairing required.
• Best for wired PC use → YUFFUN F5. The 3.5 mm jack doubles as a wired headset for calls, classes and music.
In my opinion, most people searching "portable headphones" should buy the YUFFUN F5 — it's the only one of the two that actually produces sound, and it earns its place with real FM tuning, 24-hour battery life and a lightweight foldable frame. I'd only steer you to the Yinke Case if you already own AirPods Max and your real problem is that you keep carrying them around unprotected. It solves that problem extremely well, but it's an accessory, not a listening device. Match the product to the job and you won't regret either pick.
FAQ
how to use external headphones on mac
how to connect mobile headphones
For wired headphones like the YUFFUN F5, connect the 3.5 mm plug to your device, or use a suitable adapter if your phone has no headphone jack. The F5's data sheet lists auxiliary connectivity, not Bluetooth, so pairing isn't part of its setup. The Yinke Case connects to nothing — it holds AirPods Max and triggers sleep mode.
how to connect c port headphones
A USB-C port on headphones is normally used for charging rather than audio on this type of device. The YUFFUN F5 charges over Type-C and reaches a full charge in about 2 hours, while audio runs through its 3.5 mm jack. Check your specific device's manual before assuming USB-C carries sound.
how to pack headphones
For AirPods Max, the Yinke Case is the straightforward answer: the 1:1 internal groove, velvet lining and point-shaped shockproof layer keep the headphones seated, and the hard EVA shell handles bumps and drops. For the YUFFUN F5, fold it down — it's stated at 5.7 oz and designed to slip into a backpack.
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