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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-29 · 6 min read · Independent comparison
• DECHOYECHO strength: Bluetooth 5.3 wireless freedom plus up to 12 hours of playtime and 150 hours of standby, with a magnetic quick charge that gives roughly an hour of listening from a 10-minute top-up.
• DECHOYECHO trade-off: It's a battery-dependent device, and the open-ear, air-conduction design with a bone-conduction driver is built for awareness and comfort rather than deep isolation.
• ULTECHNOVO strength: Plug-and-play wired convenience with no charging at all, wrapped in a retro PVC sponge build that leans into vintage looks and lightweight wear.
• ULTECHNOVO trade-off: No battery means no wireless, the fit is an in-ear/open style despite the retro over-ear look, and the manufacturer lists no warranty.
• Pick DECHOYECHO if you move around, sweat, commute or take calls and want your ears unblocked.
• Pick ULTECHNOVO if you want a corded, decorative, retro headset for a desk, a recording prop or a costume.
The DECHOYECHO Open Ear Headphones (model O2-7) are built around one clear idea: keep your ears open while you stay connected wirelessly. The open-ear placement means the drivers sit outside your ear canal rather than plugging it, which is exactly what you want when you're running on a road, cycling, or working in an office where you still need to hear a colleague call your name. Bluetooth 5.3 handles the wireless connection, and there's a built-in mic for calls, so it doubles as a headset rather than a pure music device.
Where it genuinely stands out in the spec sheet is battery. A full charge takes about two hours and delivers up to 12 hours of playtime with 150 hours of standby. The magnetic fast-charging is the practical highlight — ten minutes on the charger buys you roughly an hour of music or talk time. In my opinion that's the feature that matters most for real life: you grab them on the way out the door, realize they're flat, and a short top-up gets you through a commute or a workout. For anyone who has been burned by earbuds dying mid-session, that's a meaningful design choice.
Who should buy it? Runners, cyclists, gym-goers, delivery riders, and anyone who wants music and calls without sealing off the world. It's also a reasonable pick for long workdays where you want background audio and still need to hear your surroundings. Who should skip it? If you want passive noise isolation on a plane or in a loud open office, an open-ear air-conduction design is the wrong tool — you'll hear everything around you. And if you simply don't want to think about charging anything, this isn't the one. It ships in Jet Black, is rated for all ages, and carries a one-year warranty.
The ULTECHNOVO Retro Over Ear Headphones take the opposite approach: no battery, no pairing, no charging anxiety. You plug the cord into a standard jack on a computer, phone or audio device and you're listening. That plug-and-play simplicity is the whole appeal. There's nothing to configure, nothing to run out of juice, and nothing to lose in a Bluetooth menu. For a desk setup where you just want sound coming out of your laptop, that's genuinely convenient.
The design is the other half of the pitch. This is a vintage-styled headset in black with a PVC sponge build, and the manufacturer explicitly frames it around retro aesthetics — think classic headband looks, photography props, costumes, and decorative use as much as listening. It's a lightweight item at just over 27 grams, and the description emphasizes an adjustable, snug fit that reduces ear pressure for longer sessions. The wired connection is said to reproduce vocals and instruments with clear definition, which is the kind of claim that makes sense for a simple corded stereo headset aimed at casual listening and light recording work.
Who should buy it? Anyone who wants a corded headset for a desktop, a retro-themed setup, a photo shoot, a costume, or a low-fuss listening device that never needs charging. It's also a sensible pick if you dislike wireless entirely and want a physical connection you can trust. Who should skip it? If you need wireless freedom, active noise handling, a long battery, or a serious warranty, look elsewhere — the manufacturer lists no warranty here, and the connectivity is described as hybrid with an in-ear style in the item details, so the fit may not match what "over ear" suggests in the photos. If you're buying it purely for audiophile listening, temper expectations; this is a style-forward, function-follows-form product.
• Best for battery life → DECHOYECHO Open Ear Headphones. Up to 12 hours of playtime plus 150 hours of standby, with a two-hour full charge.
• Best for quick top-ups → DECHOYECHO Open Ear Headphones. Ten minutes of magnetic charging gets you about an hour of music and calls.
• Best for wireless freedom → DECHOYECHO Open Ear Headphones. Bluetooth 5.3 with a built-in mic for calls.
• Best for staying aware of your surroundings → DECHOYECHO Open Ear Headphones. The open-ear, air-conduction placement keeps your ear canal unblocked.
• Best for never charging anything → ULTECHNOVO Retro Over Ear. Fully wired, plug-and-play, no battery involved.
• Best for retro style and props → ULTECHNOVO Retro Over Ear. The vintage black PVC sponge build is the entire point.
• Best for lightweight wear → ULTECHNOVO Retro Over Ear. At roughly 27 grams, it's a very light headset.
• Best for warranty peace of mind → DECHOYECHO Open Ear Headphones. One-year warranty versus none listed for the ULTECHNOVO.
• Best for workouts and commuting → DECHOYECHO Open Ear Headphones. Wireless plus quick charge fits movement; a corded retro set does not.
• Best for a desk or studio corner → ULTECHNOVO Retro Over Ear. Plug it into a computer or audio device and leave it there.
If I were buying one of these for myself, I'd take the DECHOYECHO Open Ear Headphones. The combination of Bluetooth 5.3, a built-in mic, 12 hours of playtime and that 10-minute quick charge covers far more of my actual day — workouts, commutes, calls, background audio at my desk — and the open-ear design keeps me aware of traffic and people around me. I'd only switch to the ULTECHNOVO Retro Over Ear if I specifically wanted a corded, vintage-looking headset for a desk, a shoot or a costume, and I could live without wireless and without a warranty. In my opinion the DECHOYECHO is the safer everyday pick; the ULTECHNOVO is the fun, situational one. Before you decide, check the current price on Amazon, since that's the one factor that can flip this call either way.
FAQ
Yes. It connects via Bluetooth 5.3 and includes a built-in mic, so it works as both a music headphone and a call headset.
No. They're wired and plug-and-play, connecting to computers, phones and audio devices with a standard jack. There's no battery to charge.
The DECHOYECHO, in my opinion. Wireless Bluetooth and a quick-charging battery suit movement far better than a corded retro headset.
The spec sheets don't give a measurable answer, so I won't pretend otherwise. The DECHOYECHO uses a bone-conduction driver with an open-ear fit for awareness, while the ULTECHNOVO is a wired stereo set described as clear for vocals and instruments. They're designed for different jobs, not the same listening test.
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