If you want open-ear freedom and wireless convenience for calls, choose Zopsc Air Conduction Open; if you need a wired, no-charging listening option with a retro over-ear look, choose ULTECHNOVO Retro Over Ear. For most people choosing headphones specifically for calls, I’d lean toward Zopsc because its air-conduction design and Bluetooth connection fit a broader range of everyday situations.
• Zopsc Air Conduction Open: Open-ear air conduction, Bluetooth 5.3, and up to 8 hours of playback; the trade-off is that the design does not block out surrounding sound.
• ULTECHNOVO Retro Over Ear: Wired listening without charging and a black retro design; the trade-off is that a cord limits movement and the available details don’t specify a Bluetooth connection.
• Choose Zopsc for workouts, outdoor activities, or moving between tasks while staying aware of your surroundings.
• Choose ULTECHNOVO for a straightforward wired connection at a desk or when you prefer its classic look.
• For calls: Zopsc is the more clearly specified option, while ULTECHNOVO’s information mentions a mic option but does not explain its call controls or connection details.
Zopsc is the more movement-friendly pick. Its open-ear air-conduction design avoids pressure on the ear canal, and its lightweight, flexible ABS frame is intended to stay secure during running, cycling, and workouts. That combination makes sense for someone who wants audio without sealing off the ears. The stated use cases also include hiking, driving, and meetings, so this is not limited to exercise.
Bluetooth 5.3 provides a wireless connection, with a listed range of 15 meters. That removes the headphone cord from the equation when you’re moving around or carrying a phone nearby. The product information describes clear highs, balanced mids, and full-bodied bass, with a 20 Hz–20,000 Hz frequency range. Those details suggest general-purpose listening for music, podcasts, and voice calls, rather than a specialized listening setup.
Battery life is listed as up to 8 hours of continuous playback, and a full recharge takes 1.5 hours. That can cover a workday’s shorter listening stretches or a long outing, though it does mean charging is part of ownership. Its open-ear design is also a real compromise: it helps preserve awareness of nearby sounds, but it won’t provide the same passive isolation as headphones that cover the ears.
How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-19 · 7 min read · Independent comparison
Who should skip it: Skip Zopsc if you want a wired headset, or if blocking outside noise matters more than an open fit.
ULTECHNOVO is the simpler, corded alternative. Its black retro styling is aimed at listeners who prefer a classic-looking headset, and its wired connection is described as suitable for computers, phones, and audio devices with a standard jack plug. There’s no battery to recharge, which can be useful for desk listening or for someone who doesn’t want another wireless device to keep charged.
The product details describe a PVC sponge build and an ergonomic fit intended to reduce ear pressure during extended listening. Its stated uses include travel, desk work, and studio listening. The description also refers to detailed stereo sound and a mic option, but it does not give specific audio measurements or explain how the microphone connects or operates. I would treat that as limited information rather than assume features that aren’t spelled out.
There is an important detail to keep in mind: the product name and description call these over-ear headphones, while the product information lists the ear placement as in-ear. That inconsistency makes the exact fit less certain from the available specifications. The listing also describes a wired headset with a standard jack, but its connectivity field says “Hybrid” without clarifying what that means. For a buyer who needs a particular fit or connection, those are worth checking before deciding.
Who should skip it: Skip ULTECHNOVO if you need clearly documented wireless calling features or want a well-defined fit and connection type.
• Best for moving around without a cord → Zopsc Air Conduction Open. Bluetooth 5.3 and a listed 15-meter range suit movement with a nearby connected device.
• Best for staying aware of your surroundings → Zopsc Air Conduction Open. Its open-ear design is intended to leave the ear canal unblocked.
• Best for workouts and outdoor activities → Zopsc Air Conduction Open. The lightweight, flexible frame is designed for a secure fit during running, cycling, and workouts, with hiking also listed as a use.
• Best for avoiding battery charging → ULTECHNOVO Retro Over Ear. Its wired setup does not need charging, though you’ll need a compatible jack connection.
• Best for a retro look → ULTECHNOVO Retro Over Ear. Its black design is explicitly described as vintage or classic in style.
• Best for a call-focused buyer based on specified features → Zopsc Air Conduction Open. Calls are named among its intended uses, and Bluetooth is specified; ULTECHNOVO mentions a mic option but gives little detail about calling.
• Best for extended listening without ear-canal pressure → Zopsc Air Conduction Open. Its design avoids pressure on the ear canal. ULTECHNOVO is described as ergonomic, but its fit details are inconsistent.
• Best for someone who prefers a simple corded setup → ULTECHNOVO Retro Over Ear. Its standard-jack wired connection avoids Bluetooth pairing and battery management.
My Verdict
I’d choose Zopsc Air Conduction Open for calls because it combines a wireless connection with an open-ear design and a stated 8-hour playback time. That makes it the more flexible option for calls between tasks, walks, and workouts, while its open fit can help keep surrounding sounds audible. I’d choose ULTECHNOVO only if a wired connection and retro appearance matter more to me than clearly documented call features. For anyone looking for the best bluetooth headphones for calls between these two, Zopsc is my pick.
Think first about where you’ll use the headphones. Zopsc’s open-ear design is aimed at outdoor movement and situations where hearing nearby sounds matters. ULTECHNOVO is described for desk use, travel, and studio listening, but the available information doesn’t establish noise isolation or give detailed microphone specifications. Neither should be treated as a guaranteed solution for noisy surroundings based on these details alone.
Connection style is another practical dividing line. Zopsc connects over Bluetooth 5.3 and needs recharging; its listed charge time is 1.5 hours. ULTECHNOVO is presented as wired and does not require charging, but its standard-jack description and “Hybrid” connectivity field don’t fully align. If you’re choosing it for a particular phone or computer, confirm that the connection works with that device.
Fit deserves extra attention if you’re comparing these as head phones for calls or considering sleep headphones for calls. Zopsc is explicitly open-ear and avoids pressure on the ear canal, but there is no information saying it is designed for sleeping. ULTECHNOVO’s name and description suggest an over-ear style, while its product information says in-ear. Neither set of details supports assuming a sleep-specific fit or comfort level.
Finally, decide how much you value clear, documented specifications. Zopsc provides Bluetooth version, range, playback time, charging time, and frequency range. ULTECHNOVO offers a corded, no-charge concept and a retro style, but leaves more questions about fit, connectivity, and microphone use. If cost is part of your decision, check the current price on Amazon; the right choice here still comes down to how you’ll use and connect the headphones.
FAQ
Zopsc has an open-ear design intended to keep the ear canal unblocked, so it is not the natural choice if you want the ears enclosed. The available ULTECHNOVO details do not specify noise isolation, so I wouldn’t assume how much outside sound it blocks.
It is described as a wired headset that does not need charging. The product information also uses the term “Hybrid” for connectivity, so check the connection details if you need certainty about compatibility with a specific device.
Neither product is described as a sleep headset. Zopsc avoids pressure on the ear canal, but that alone doesn’t establish sleeping comfort; ULTECHNOVO’s fit information is inconsistent, so its suitability for sleeping is unclear.
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