How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-25 · 6 min read · Independent comparison
• Cyber Acoustics AC-104ENC — biggest strength: USB-A wired connection with Environmental Noise Cancelation (dual-mic), in-line volume and mic-mute controls, and a 45-gram build designed for all-day wear.
• Cyber Acoustics AC-104ENC — biggest trade-off: It's tethered. No battery, no Bluetooth — you're on an 8 ft cable and a USB-A port, so it's a desk tool, not a walk-around tool.
• AYI Earpiece Headphone Dual — biggest strength: Wireless Bluetooth 5.0 freedom with a changeable earhook so you can flip it to either ear, plus up to 15 hours of talk time on a single charge.
• AYI Earpiece Headphone Dual — biggest trade-off: Open-ear single-earpiece design means you only get audio in one ear, and it depends on charging — no cable, no infinite runtime.
• Who each is for: Pick the AC-104ENC if you live at a desk on calls all day. Pick the AYI if you need hands-free audio while you're moving.
The AC-104ENC is a mono USB headset built around one job: keeping your voice clear while you're stuck at a computer. The headline feature is Environmental Noise Cancelation, which uses two microphones plus an algorithm to pull your voice out of the background and push the room noise down. If you work in a busy call center, an open-plan office, or a noisy home, that's the whole point of the product — it's targeting the "people can hear me clearly on every call" problem, not the "I want immersive music" problem.
Who should buy it: Call-center agents, remote workers, students in online classes, or anyone whose day is a string of video meetings on a laptop or desktop. Who should skip it: If you need to move around the room, take calls on a phone in the car, or want two-ear stereo sound for music, this isn't the tool. It's a wired, single-earpiece, desk-bound headset by design.
AYI Earpiece Headphone Dual: Who It's For
The AYI earpiece is the opposite philosophy. This is a wireless Bluetooth 5.0 headset with an open-ear, earhook design — one earpiece that hooks over your ear rather than sealing it. The changeable earhook means you can wear it on the left or right ear depending on which side you prefer or which ear is free, which matters if you're taking calls while driving, at the gym, or on a job where you need one ear open to the room. It weighs in around 0.07 pounds, and the "painless long time wearing" angle is the core pitch: nothing jammed into your ear canal, nothing clamped over your head.
On the audio side, AYI leans on a CSR chip, a 40mm dynamic driver, and a dual-mic design for calls, with a frequency range of 20 Hz–20,000 Hz and a bass-forward tuning. It's dust and sweat resistant, which lines up with the driving/gym/business positioning. The battery story is the practical headline: up to 15 hours of talking and 10 hours of music on a single charge, with a 1.5–2 hour charge time and up to 200 hours of standby. Battery average life is listed at 12.5 hours. Controls are push-button and easy to reach — play/pause, volume, answer/end, track skip — for genuine hands-free use. It pairs with iOS, Android, Mac, and PC over Bluetooth.
Who should buy it: Drivers, gym-goers, delivery and field workers, or anyone who wants one-ear audio without a cable and without something stuffed in their ear. Who should skip it: If you need both ears, a boom mic positioned at your mouth, or a connection that never needs charging, this is the wrong category. It's a single-earpiece, battery-dependent, wireless device.
• Best for all-day desk and call-center work → Cyber Acoustics AC-104ENC. Wired, weightless-feeling at 45 g, with mute and volume right on the cable.
• Best for background-noise rejection on your voice → Cyber Acoustics AC-104ENC. Its dual-mic Environmental Noise Cancelation is the entire reason it exists.
• Best for freedom of movement → AYI Earpiece Headphone Dual. Bluetooth 5.0, no cable, wear it on either ear.
• Best for long wireless talk time → AYI Earpiece Headphone Dual. Up to 15 hours of talking on one charge.
• Best for driving and gym use → AYI Earpiece Headphone Dual. Open-ear, sweat-resistant, changeable earhook.
• Best for zero charging hassle → Cyber Acoustics AC-104ENC. USB power, no battery to manage, ever.
• Best for stereo music and bass → AYI Earpiece Headphone Dual. 40mm dynamic driver with bass-forward tuning, versus a mono work headset.
• Best for meeting-platform compatibility → Cyber Acoustics AC-104ENC. Stated to work with Teams, Zoom, Google Meet, and contact-center software.
In my opinion, if your work happens at a keyboard — calls, meetings, classes — the Cyber Acoustics AC-104ENC is the smarter buy. The dual-mic Environmental Noise Cancelation, the in-line mute, and the fact that it never needs charging make it a better fit for a desk job than any wireless earpiece. I'd only steer you to the AYI Earpiece Headphone Dual if your day happens away from the desk: driving, moving, working out. It's the better pick for hands-free mobility, not for focused calling. Match the tool to where you actually spend your hours.
For desk-based work calls, the AC-104ENC is the better fit — it's a wired USB headset with dual-mic Environmental Noise Cancelation and a boom mic positioned near your mouth. The AYI is designed for hands-free mobile use, not a fixed workstation.
Yes. It's a Bluetooth headset, so it runs on its battery: up to 15 hours of talk time and 10 hours of music, with a 1.5–2 hour charge. The Cyber Acoustics AC-104ENC is USB-powered, so it never needs charging.
Yes — the AYI has a changeable earhook so you can wear it on the left or right ear. The Cyber Acoustics headset takes a different approach: its boom mic rotates for left- or right-side wear instead.
I don't quote prices here. Use the "Check latest price on Amazon" button on this page to see the current price for whichever model you're leaning toward.
As an Amazon Associate I earn from qualifying purchases.
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.
When you buy through links on this page, we may earn a commission from qualifying purchases at no extra cost to you.
Amazon and the Amazon logo are trademarks of Amazon or its affiliates. This site is an independent third-party review and is not affiliated with, endorsed by, or sponsored by Amazon or the product brands mentioned.
See also: Global Teck Worldwide Evolve2 vs AYI Earpiece Headphone Dual, Cyber Acoustics AC-840 vs Tobysome QC35, KAFRI RGB Dual Headphone vs MAONO XLR/USB Dynamic Microphone