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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-28 · 8 min read · Independent comparison
• XTREME Monster — biggest strength: it turns any 3.5 mm AUX input into a wireless Bluetooth destination, with a built-in mic, one-button Siri/Google Assistant access and navigation-app audio routed through your existing speakers.
• XTREME Monster — biggest trade-off: it is a receiver, not a pair of headphones. You still need to plug it into something — a car radio, a home stereo, a powered speaker — to hear anything, and it powers from a battery (or continuously while plugged in).
• APETOO 3.5mm — biggest strength: it is a complete, self-contained listening solution: in-ear buds, a 3.5 mm gold-plated plug, inline volume control, a microphone and a mute function, plus two extra pairs of ear tips and a carry case in the box.
• APETOO 3.5mm — biggest trade-off: it is strictly wired. There is no Bluetooth, so the cable is the connection — and it only works with devices that actually have a 3.5 mm audio port.
• Who each is for: XTREME Monster is for the driver or home-listener who wants wireless convenience on top of gear they already own; APETOO 3.5mm is for the student, commuter, traveler or kid who just wants plug-in earbuds that work the moment they hit the jack.
The XTREME Monster is a Monster-branded Bluetooth audio receiver built around a single, focused job: taking a device that only accepts a 3.5 mm AUX cable and making it wireless. The enclosure is black plastic, it's compact by design, and the connection chain is straightforward — your phone or tablet talks to the receiver over Bluetooth, and the receiver feeds audio out through a 3.5 mm AUX connection in stereo. That's the whole trick, and it's a genuinely useful one for anyone whose car or home setup predates Bluetooth.
Where it earns its place is in the car. The built-in microphone handles hands-free calls: you can answer, end or redial from the multi-function button without touching your phone, which is exactly what you want at a red light or on a highway ramp. One button also wakes Siri or Google Assistant, and because it plays through your vehicle's speakers, navigation prompts come through loud and clear instead of tinny and distant on a phone speaker. That combination — calls, assistant, directions — is the most compelling reason to buy it.
Power is flexible in a way I appreciate. It runs on a rechargeable battery for portable listening, or you can keep it plugged in for continuous power when it lives permanently in a car or on a shelf. So it suits two very different owners: the driver who wants a set-and-forget install, and the traveler who wants to carry it between a rental car, a hotel speaker and a home stereo.
Who should skip it? Anyone who actually wants headphones. There are no earpieces here — it's an adapter, so if you don't have a 3.5 mm AUX input to plug into, it has nothing to do. And if you want the simplest possible listening setup with zero pairing, a wired pair is less fuss. It also isn't the pick for someone who wants a sealed, isolating in-ear fit for noisy commutes; that's a different product category entirely.
The APETOO 3.5mm is the opposite kind of product: a finished pair of wired in-ear headphones, ready to use the second you push the plug in. The design is in-ear with a bud-style earpiece, built from ABS, TPE, copper and silicone, and finished in pink — a deliberate, style-forward choice that the brand clearly leans into for offices, libraries, classrooms, Zoom meetings and commutes. The 32-ohm impedance and dynamic driver point to a set that's easy to drive from a phone, laptop or tablet without any amp in the chain.
The practical details are what make it a sensible daily pick. The connector is a 90-degree angled gold-plated 3.5 mm plug, which is friendlier to pockets and tight jack recesses than a straight plug. The inline control gives you push-button volume and a microphone, and there's a mute function — genuinely handy for anyone who takes calls or sits in online classes and wants to cut the mic without hunting for a software toggle. Sound isolation is part of the design too, so the silicone tips do some work blocking background noise, which matters on a plane, a bus or a noisy open-plan office.
In the box you get the earbuds, two extra pairs of ear tips and a mini zipper carry case. That's a thoughtful bundle: the extra tips let you find a fit that actually stays put, and the case means they don't end up tangled at the bottom of a bag. It's the kind of kit that works for teens and adults alike — and the brand positions it as a gift-friendly set for students heading back to school.
The trade-off is baked into the name. There's no wireless technology at all, so the cable is the connection. And compatibility is narrow by definition: it's only for devices with a 3.5 mm audio port. The brand lists a long roster of phones, tablets and laptops that qualify, and it explicitly warns that this plug works only with 3.5 mm ports — which means phones that dropped the headphone jack will need an adapter you supply yourself. If you want wireless freedom, this isn't the product. If you want zero pairing, zero charging and instant sound, it is.
• Best for turning an older car stereo into a wireless setup → XTREME Monster. It's built specifically for 3.5 mm AUX inputs in vehicles and home systems.
• Best for hands-free calling while driving → XTREME Monster. The built-in mic plus one-button answer/end/redial is the core of its design.
• Best for voice assistants and navigation → XTREME Monster. Siri and Google Assistant are reachable from the multi-function button, and navigation audio plays through your car speakers.
• Best for flexible power → XTREME Monster. Run it on the rechargeable battery for portable use, or keep it plugged in for continuous power.
• Best for plug-and-play listening right now → APETOO 3.5mm. No pairing, no charging, no setup — it works as soon as it's in the jack.
• Best for calls and online classes → APETOO 3.5mm. The inline mic, push-button volume and mute function cover exactly that use case.
• Best for travel and school → APETOO 3.5mm. Extra ear tips, a carry case and a design aimed at classrooms, libraries and commutes make it the more portable kit.
• Best for noisy environments → APETOO 3.5mm. The in-ear silicone seal provides sound isolation, which a car adapter obviously can't.
• Best for gifting → APETOO 3.5mm. The bundled tips, case and color-forward styling make it a more gift-shaped product; the XTREME Monster is a functional accessory for gear you already own.
In my opinion, the right call comes down to one question: do you need wireless, or do you need headphones? If the answer is wireless, I'd buy the XTREME Monster — it solves a real problem that millions of older car stereos and home receivers still have, and it does it with calling, assistant access and navigation audio built in. If the answer is headphones, I'd buy the APETOO 3.5mm — it's complete out of the box, needs no charging, and the mic, mute and inline volume make it genuinely useful for work, school and travel. They're not really competitors so much as two different answers to "how do I listen?" Pick the one that matches your gear.
how to make aux cable with headphones
You don't need to make anything. A standard 3.5 mm AUX cable — or the plug already on wired earbuds like the APETOO 3.5mm — carries the audio directly from a device's headphone jack into an AUX input. If you want to go the other direction and send Bluetooth audio into an AUX input, that's exactly what the XTREME Monster receiver does: Bluetooth in, 3.5 mm AUX out.
how to use wired headphones without headphone jack
You need a 3.5 mm port somewhere in the chain. If your phone or laptop dropped the headphone jack, you'll need a separate adapter to give the APETOO 3.5mm a port to plug into — the brand notes its plug works only with devices that have a 3.5 mm audio port. Alternatively, a Bluetooth receiver like the XTREME Monster takes wireless audio and outputs it through a 3.5 mm AUX connection, which is useful for speakers and stereos rather than headphones themselves.
how do i connect my wired headphones to my phone
Plug the 3.5 mm connector into your phone's audio port and press play — that's it, since the APETOO 3.5mm is a wired, plug-and-play set with no pairing or charging. If your phone has no 3.5 mm port, you'll need an adapter. The XTREME Monster is a Bluetooth receiver rather than a headphone solution, so it's the right tool when you want to feed audio into a stereo or car system, not into earbuds.
Not meaningfully. The APETOO 3.5mm is a finished pair of wired earbuds that plays whatever is fed into its plug, and the XTREME Monster is a Bluetooth receiver that outputs through a 3.5 mm AUX connection to speakers, stereos and car systems. They're aimed at different setups, so treat them as two separate purchases rather than a matched pair.
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