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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-26 · 7 min read · Independent comparison
If you want a light, wireless, go-anywhere pair for work, school and workouts, choose iJoy Over-Ear; if you need an actual bass amp with a headphone jack for silent practice, choose demusea 20W. These two share almost nothing except the word "headphones" in their marketing, and that is exactly why this comparison is worth reading before you buy.
• iJoy Over-Ear biggest strength: true portable headphones — Bluetooth wireless, 10-hour playtime, 10 m range, plus a backup 3.5 mm wire and SD slot so it never fully dies on you.
• iJoy Over-Ear biggest trade-off: passive noise cancellation only, plastic enclosure, and no active noise cancelling or codec detail beyond the basics.
• demusea 20W biggest strength: a 20-watt solid-state bass amp with a 3-band EQ and a built-in headphone jack, so you can practice loud or silent.
• demusea 20W biggest trade-off: it is not a wearable headphone at all — it is a corded 3.31 kg practice amp that needs a power outlet.
• Pick iJoy Over-Ear if you want audio on your ears during commutes, classes, gym sessions and calls.
• Pick demusea 20W if you play bass and want a small amp with silent practice options for lessons, bedroom sessions and travel.
The iJoy Over-Ear is built around the idea that headphones should survive a normal, messy day. It is a wireless over-ear model with Bluetooth and a 10-meter range, so you can leave your phone on a desk or in a bag and still move around a room. Playtime is rated at 10 hours, and a full charge takes about 2 hours via the included USB Type-C cable. That math suits a workday, a study block, a commute plus a gym session, or a long study-and-chore afternoon.
What I like about the design is the redundancy. iJoy ships an AUX cable in the box alongside the charging cable, so when the battery runs out you can plug the 3.5 mm jack straight into a laptop, an older phone, a tablet or an in-flight entertainment port and keep listening. There is also an SD slot, which is unusual on over-ear headphones and handy if you keep music on a card and want to listen without pairing anything. Controls are handled through an app with volume control, and the earpieces use passive noise cancellation — meaning the over-ear fit physically blocks some ambient sound rather than cancelling it electronically.
Who should buy it: students, commuters, gym-goers, casual gamers, and anyone who wants one pair of headphones for work, school and travel with a wired fallback. Who should skip it: if you need active noise cancelling for loud flights, or if you want a bass amp, this is not that product. It also comes with a 365-day manufacturer warranty, which is worth noting for a budget-minded buyer.
demusea 20W: Who It's For
The demusea 20W is a different animal entirely. It is a 20-watt solid-state bass amplifier with a 6.5-inch speaker, aimed at beginner to intermediate bassists who practice at home, take lessons, or jam in small settings. Its headline feature for our purposes is the built-in headphone jack: plug in headphones and the amp goes silent to the room, which is what makes late-night practice possible in an apartment or a shared house. There is also an aux input for connecting a phone or MP3 player so you can play along with backing tracks.
Tone shaping comes from a 3-band equalizer — treble, mid and bass knobs — so you can dial in anything from a warm, mellow tone to a brighter, punchier low end. It has two output channels, a 6.35 mm jack and a 3.5 mm jack, and it is corded electric, so it needs a wall outlet. Portability here means a sturdy carry handle and a reinforced, leather-covered cabinet with corner protectors, not battery power. It measures roughly 11.1 inches wide, 10.3 inches high and 4.2 inches deep, and weighs 3.31 kg.
The accessory bundle is genuinely generous: a 3-meter noiseless cable, a 6.5 mm-to-3.5 mm headphone adapter, guitar picks, an aux cable and a pair of earphones. That adapter matters — it is what lets you use ordinary 3.5 mm headphones with the amp's larger jack.
Who should buy it: bass players who want a compact practice rig with silent-practice capability and a tone stack, plus a one-year warranty. Who should skip it: anyone shopping for headphones to wear on a commute. It is not wireless, it is not worn on your head, and it will not pair with your phone.
Side-by-Side: Which Should You Choose?
• Best for silent bass practice → demusea 20W. Built-in headphone jack mutes the speaker for the room.
• Best for wired fallback → iJoy Over-Ear. Ships with a 3.5 mm AUX cable, so it works even with a dead battery.
• Best for tone control → demusea 20W. Three-band EQ with treble, mid and bass knobs.
• Best for off-grid use → iJoy Over-Ear. Rechargeable battery; the demusea is corded electric only.
• Best for a bassist's lesson bag → demusea 20W. Carry handle, reinforced corners, leather covering, 3.31 kg.
• Best for gym, school and commuting → iJoy Over-Ear. Over-ear fit, app volume control, passive noise cancellation.
• Best all-in-one starter kit → demusea 20W. Cables, adapter, picks, aux cable and earphones included.
In my opinion, most people searching "portable headphones" want the iJoy Over-Ear. It is the only one of the two that is actually worn on your head, it goes wireless, it lasts about 10 hours per charge, and the AUX cable and SD slot mean a flat battery does not end your listening. The demusea 20W is excellent at what it is — a small bass amp with a headphone jack and a real EQ — but it is a practice tool, not a pair of headphones. If you play bass and want quiet late-night sessions, buy the demusea. If you want portable audio for work, school, gym and travel, buy the iJoy Over-Ear.
how to connect mobile headphones
On the iJoy Over-Ear, turn the headphones on and pair them over Bluetooth from your phone's settings; the wireless range is about 10 meters. If Bluetooth is not an option, plug the included AUX cable into your phone's 3.5 mm jack. The demusea 20W does not connect to a phone as a headphone — it only accepts an aux input to play backing tracks.
how to connect c port headphones
The iJoy Over-Ear charges over USB Type-C and includes a USB Type-C charging cable in the box. The Type-C port on this model is for charging, so use Bluetooth or the 3.5 mm AUX cable for audio. The demusea 20W is corded electric and has no USB-C audio or charging port.
how to use external headphones on mac
Pair the iJoy Over-Ear over Bluetooth from your Mac's sound settings, or run the AUX cable into the Mac's headphone jack — 32 ohm impedance means it drives easily without extra gear. For the demusea 20W, plug your headphones into the amp's jack using the included 6.5 mm-to-3.5 mm adapter, then connect the amp to your Mac with the aux cable if you want to play along to audio.
how to pack headphones
The iJoy Over-Ear folds into a bag easily at 8 ounces with a plastic over-ear frame; keep the AUX and USB-C cables together so you always have the wired option. The demusea 20W is the opposite packing problem — at 3.31 kg with an 11.1-inch-wide cabinet, it travels by its carry handle and needs a power outlet at the other end.
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See also: TUINYO Headphones Over Ear vs iJoy Over-Ear, Hercules HDP DJ45 vs MZYDM Headphones Over Ear, Myuiao 2 vs RIYADAone Case: Portable on Ear Headphones