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
If you want a tough, pocketable shield for a pair of iClever kids' headphones on a fishing trip, choose Hermitshell Hard Travel Case; if you need headphones you can actually plug in and listen with on the boat, at the dock, or at the desk, choose MartiAudio Over Ear Headphones. That's the short version, and it's worth saying plainly: these two products don't compete with each other, they complement each other. One is a case. One is a headset. The real question is which one solves the problem you actually have.
• Hermitshell Hard Travel Case — biggest strength: a rigid EVA shell that's purpose-built to fit iClever HS19 / iClever BTH12 kids' headphones and protect them from bumps, dents and scratches. Biggest trade-off: it's a case only, so it produces no sound at all.
• MartiAudio Over Ear Headphones — biggest strength: genuine wide compatibility, with a wired 3.5mm connection plus an included USB-C adapter, so it works across laptops, tablets, phones and PCs. Biggest trade-off: it's wired, so you're tethered to your device.
• Who Hermitshell is for: anyone who already owns (or is buying) iClever HS19 or BTH12 headphones and wants them to survive being carried around.
• Who MartiAudio is for: anyone who needs one headset that plugs into basically everything, from a work laptop to a phone to a console controller.
• One line to settle it: buy the case if your problem is protection, buy the MartiAudio if your problem is listening.
Let's be clear about what this thing is. The Hermitshell Hard Travel Case is a storage and carrying case, made from EVA with a nylon exterior, and it's molded to fit two specific models: the iClever HS19 and the iClever BTH12 kids' headphones. That's the whole job. It protects your favorite device from bumps, dents and scratches, and it does that job with a hard shell rather than a soft pouch that squashes flat in a backpack.
The design details tell you how it's meant to be used. There's a single compartment, a top handle, and a compact footprint — so it's built to be grabbed and carried, not buried. EVA is the same class of foam used in a lot of hard-shell gear cases: light, semi-rigid, and good at absorbing the kind of knocks that happen when a bag gets tossed into a truck bed or dropped on a dock. The closure is listed as open, which is worth knowing — this is a case you open and close around the headphones, not a zippered vault.
Who should skip it? Anyone who doesn't own those specific iClever models, and anyone who thinks they're buying headphones. This is case only — the device and accessories are sold separately. It also won't fit larger adult over-ear headphones, so don't buy it hoping to cram a big pair in. And if you want a case with multiple compartments or a zipper, the single-compartment, open-closure design here won't match that expectation.
MartiAudio Over Ear Headphones: Who It's For
The MartiAudio Over Ear Headphones are the opposite kind of product: a wired, closed-back over-ear headset designed to be the one pair you grab for everything. The headline feature is compatibility. You get a 3.5mm wired connection as the core, plus a USB-C adapter in the box, so the same headset can run off USB-C laptops, tablets and smartphones, and off PCs and audio equipment via the 3.5mm jack. That's a genuinely useful combination for anyone who has bounced between a phone with no headphone jack and a desktop that still has one.
Comfort looks thought through on paper. Soft memory-foam ear cushions and an adjustable headband are exactly the right ingredients for long sessions — work calls, online learning, gaming, a full day at a desk. The closed-back design is doing real work too: it's listed as sound isolation, which means the ear cups physically block ambient noise rather than actively cancelling it. On a boat, that matters. You're not going to silence an outboard, but a closed-back cup takes the edge off wind and engine drone so you can hear what you're listening to. If you've been hunting for the best on ear headphones for fishing that won't fight you on fit, the memory-foam cushioning here is the part to care about.
The audio specs are sensible rather than exotic: 40mm dynamic drivers, 40 ohm impedance, 94 dB sensitivity, and a 20 Hz – 20 kHz frequency range. Translation: this is an easy-to-drive headset that doesn't demand a headphone amp, and it'll play the full range of normal listening material. A 40 ohm load is friendly to phones and laptop jacks alike.
Controls are inline. There's a built-in microphone and push-button controls on the cable for volume, answering calls and playback, so you're not reaching for your phone with wet hands — a small thing that matters a lot when you're holding a rod. The build is described as reinforced cable and solid construction, and the item weight is 7.68 ounces, which is light enough to wear for hours without your neck complaining.
Who should buy it? Anyone who wants one wired headset for work, calls, video conferences, commuting and casual music — especially people juggling USB-C and 3.5mm devices. In my opinion it's also the more sensible pick for a fishing trip where you want to listen to something while you wait, as long as you're fine with a cable.
Who should skip it? If you need wireless freedom, this isn't it — it's a wired headset. If you want active noise cancellation rather than passive isolation, look elsewhere. And if you need a hard case to protect expensive gear, the MartiAudio doesn't include one.
• Best for protecting iClever kids' headphones → Hermitshell Hard Travel Case. The EVA shell is molded for HS19 and BTH12 models specifically.
• Best for listening across all your devices → MartiAudio Over Ear Headphones. USB-C adapter plus 3.5mm jack covers laptops, tablets, phones and PCs.
• Best for long wear sessions → MartiAudio Over Ear Headphones. Memory-foam cushions and an adjustable headband are built for extended use.
• Best for quieting the world around you → MartiAudio Over Ear Headphones. Closed-back cups provide sound isolation.
• Best for calls and quick control → MartiAudio Over Ear Headphones. Inline mic and push-button controls handle volume, calls and playback.
• Best for grab-and-go carrying → Hermitshell Hard Travel Case. Compact body, top handle, one compartment, nothing to think about.
• Best if you want zero setup → Hermitshell Hard Travel Case. It has no battery, no pairing, no firmware. It just holds things.
• Best if you're buying for a kid's gear and a parent's listening → both. They solve different problems and there's no real overlap.
If I had to pick one, I'd buy the MartiAudio Over Ear Headphones. Here's my reasoning: a case protects a product you already own, but the MartiAudio is the product — it plugs into everything I use, it's comfortable for long stretches, and the inline mic and controls make it useful for calls as well as music. For a fishing trip where I want something playing while I wait, that's the piece of gear that actually does something. The Hermitshell is a smart, focused buy, but only if you already have iClever HS19 or BTH12 headphones that need protecting. In my opinion, most people reading this need the headphones, not the case.
how to unpair headphones from all devices
If your headphones are wireless, you'd normally open your device's Bluetooth settings and choose "forget this device" for each paired device. Worth noting: the MartiAudio Over Ear Headphones are wired, so there's nothing to unpair — you just unplug the 3.5mm jack or the USB-C adapter.
how to make headphones forget all devices
This only applies to Bluetooth headphones, and the usual method is a reset — often holding a control button for several seconds until the indicator flashes, which clears the pairing list. The MartiAudio model has no Bluetooth pairing list at all, since it connects physically through its 3.5mm jack or the included USB-C adapter.
how to listen to two devices at once with headphones
You'd typically need a headset that supports multipoint Bluetooth, or a mixer. The MartiAudio Over Ear Headphones are a single wired connection — you plug into one device at a time via 3.5mm or the USB-C adapter — so simultaneous dual-device listening isn't part of their feature set.
how to disconnect headphones from all devices
For wireless models, turn Bluetooth off on each device or remove the headset from the paired list. With the MartiAudio, disconnecting is simply a matter of pulling the cable, and there's no pairing state to clean up afterward. That simplicity is one of the real advantages of a wired design.
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