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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want serious, isolating over-ear headphones for studio-style listening, choose AKG K72; if you need a portable 61-key keyboard bundle that happens to include headphones, choose Alesis Melody 61. These two products share almost nothing except a headphone jack, and that's exactly why this comparison matters: one is a dedicated listening tool, the other is a beginner instrument package with a pair of headphones thrown in. Let's sort out which one actually belongs in your bag.
• AKG K72 — biggest strength: closed-back over-ear design with 40mm professional drivers, a 16 Hz–20 kHz range and a self-adjusting headband built for long sessions.
• AKG K72 — biggest trade-off: it's wired only, with a single-sided non-detachable 9.8' cable, so it's tethered to whatever you plug it into.
• Alesis Melody 61 — biggest strength: a complete beginner keyboard kit — 61 keys, 300 voices, 300 rhythms, a stand, bench, mic, power adapter and headphones — in a 6.6 lb package.
• Alesis Melody 61 — biggest trade-off: the included headphones are a bundle extra, not a dedicated listening product, and the keyboard runs on corded power or six AA batteries you supply yourself.
• Pick AKG K72 if you want portable, isolating headphones for monitoring, practice and detailed listening.
• Pick Alesis Melody 61 if you want a lightweight travel keyboard and need headphones as part of a starter setup.
The K72 is a closed-back, over-ear studio headphone, and that phrase does a lot of work here. Closed-back means the cups seal around your ears and maximize isolation, which is why this design shows up in rehearsals, tracking rooms and live stages. The 40mm dynamic drivers cover 16 Hz to 20 kHz, so low-frequency content — kick drums, bass guitar — stays defined instead of turning to mud. Sensitivity is rated at 112 dB with 32 ohm impedance, which tells me these are easy to drive from a phone, a laptop or an interface without needing a separate amp.
Who should buy it? Anyone who wants one pair of wired over-ears for focused listening: bedroom producers, students tracking vocals, gamers who want isolation, or commuters who don't mind a cable. Who should skip it? If you need wireless freedom, active noise cancellation, or a foldable design that disappears into a jacket pocket, the K72 isn't that product. It's portable in the sense that it travels well in a bag, not in the sense that it's wireless.
Alesis Melody 61: Who It's For
The Melody 61 MK4 is a 61-key digital keyboard aimed squarely at beginners. The pitch is simple: 300 built-in voices, the ability to layer or split two sounds, sustain and vibrato effects, 300 accompaniment rhythms with auto-chord, and 30 demo songs. Add a metronome, a record mode for reviewing practice sessions, and USB-MIDI so you can plug into a Mac or PC and use software like Skoove or Melodics, and you have a genuinely capable practice station rather than a toy.
What makes it interesting for this comparison is the bundle. You get an adjustable-height stand, an easy-to-assemble bench, a sheet music/tablet stand, a power adapter and a pair of headphones. That headphone output is a 1/8" jack that mutes the internal speakers, which is exactly what you want for private practice at night. There's also a 1/4" sustain pedal input and a 1/8" aux input for connecting a phone or tablet.
Portability is where it earns its keep: 6.6 pounds (3 kg) and a compact 36" x 9.12" x 2.88" footprint, plus the option to run on six AA batteries when you want to take it somewhere without an outlet. Note that batteries aren't included, and the listed power source is corded electric — the AA option is a convenience, not the default.
Who should buy it? New piano students of any age, parents setting up a first instrument, or anyone who wants a self-contained practice rig with lessons and accessories in one box. Who should skip it? If you already own a keyboard and just need headphones, buying a whole instrument to get a pair makes no sense.
Side-by-Side: Which Should You Choose?
• Best for private keyboard practice → Alesis Melody 61. The 1/8" headphone output mutes the internal speakers, so you can play at midnight without waking anyone.
• Best for a complete starter kit → Alesis Melody 61. Stand, bench, mic, power adapter and headphones all arrive together.
• Best for traveling light with audio gear → AKG K72. A single pair of over-ears in a bag beats hauling a 36-inch keyboard.
• Best for battery-powered use → Alesis Melody 61. Six AA batteries let you play away from an outlet; the K72 is wired-only by design.
• Best for long sessions → AKG K72. Self-adjusting headband, lightweight build and replaceable earpads are all comfort-and-longevity features.
• Best for learning an instrument → Alesis Melody 61. 300 voices, 300 rhythms, 30 demo songs and USB-MIDI into lesson software.
• Best if you already own a keyboard → AKG K72. You'd be paying for an instrument you don't need just to get a pair of headphones.
If your goal is portable headphones — the thing this comparison is really about — I'd buy the AKG K72. In my opinion, a dedicated closed-back over-ear with 40mm drivers, a 16 Hz–20 kHz response, a self-adjusting headband and replaceable earpads is simply the better listening tool, and it's the one that travels in a backpack without a second thought. The Melody 61 is a fine beginner keyboard and a genuinely good bundle, but the headphones in it are an accessory, not the point. Buy the Alesis only if you actually want the instrument. Before deciding, check the current price on Amazon for both — the numbers move, and the page button will show you today's figures.
how to connect mobile headphones
On the AKG K72, plug the 1/8" TRS cable straight into your phone's headphone jack; if your phone only has USB-C, you'll need a USB-C-to-3.5mm adapter. If you want to hear the Alesis Melody 61 through mobile headphones, use its 1/8" headphone output, which mutes the internal speakers.
how to connect c port headphones
Neither product has a USB-C audio jack built in. The K72 terminates in a 1/8" TRS plug, and the Melody 61's headphone out is also 1/8", so a USB-C device needs an adapter or dongle in both cases. The Melody 61's USB port is for MIDI data to a Mac or PC, not for audio output.
how to use external headphones on mac
The K72 works with a Mac through its 3.5mm jack, or through a USB audio interface; the included 1/4" screw-on adapter helps if you're going into studio gear. For the Melody 61, connect it over USB-MIDI to your Mac, then plug headphones into the keyboard's own 1/8" output to hear it privately.
how to pack headphones
For the K72, lay the over-ear cups flat and coil the fixed 9.8' cable loosely to avoid stressing the single-sided connection — there's no detachable cable to swap if it fails. The Melody 61's included headphones are the lighter, more packable pair, so they're the easier set to toss in a bag alongside the keyboard's accessories.
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See also: SWDSTP Personal vs YDYBZB KPH7: Portable Headphones, UMUTOO A1 vs Voopwink Kids Headphones: Portable Headphones, AKG K52 vs Sennheiser HD 200: Recording Studio Headphones