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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want a wireless, open-ear earpiece you can wear on either ear for driving, gym sessions and all-day music, choose AYI Earpiece Headphone Dual; if you need a wired, Microsoft Teams-certified mono headset with a boom mic for clear calls in an office or contact-center setup, choose EPOS Impact 100.
• AYI Earpiece Headphone Dual — biggest strength: Truly wireless Bluetooth 5.0 freedom with a changeable earhook you can flip between left and right ear, plus an open-ear design built for painless long wear.
• AYI Earpiece Headphone Dual — biggest trade-off: A single-ear open design means ambient noise leaks in and sound stays personal rather than immersive; it's also a Bluetooth device, so you'll need to manage charging.
• EPOS Impact 100 — biggest strength: A wired USB-C connection with an included USB-A adapter, a flexible noise-cancelling boom mic, and Microsoft Teams certification with a dedicated Teams button.
• EPOS Impact 100 — biggest trade-off: It's tethered by a cable and built purely for voice-centric professional work, so it isn't a music-first or workout companion.
• Who AYI is for: Drivers, gym-goers, delivery riders and anyone who wants hands-free calls and music without a cable.
• Who EPOS is for: Office workers, remote employees and call-center agents who live in softphone apps and need their voice heard clearly.
The AYI Earpiece Headphone Dual is a wireless single-ear headset built around two ideas: freedom of movement and comfort over long stretches. It uses Bluetooth 5.0 for a fast, stable connection to iOS and Android phones, tablets, Macs and PCs, so there's no dongle or cable to think about. The earhook is changeable, which means you can wear it on your left or right ear depending on which side feels natural or which hand you use to reach for controls.
What stands out most is the battery math. AYI lists up to 200 hours of standby, 10 continuous hours of music and 15 continuous hours of talking on a single 1.5–2 hour charge, with an average battery life figure of 12.5 hours. For a driver on a long shift or someone who takes calls scattered across a workday, that's a genuinely convenient profile — you're not hunting for a charger every few hours.
The open-ear, painless-wear design is the other headline. It sits around the ear rather than pressing into the canal, which is the whole point for people who find in-ear buds uncomfortable after an hour or two. It's dust and sweat resistant, which nudges it toward gym and outdoor use. The dual-mic setup and intelligent noise reduction are aimed at keeping phone calls clear, and there's a 40mm dynamic driver with a frequency range of 20 Hz to 20,000 Hz for music.
So who should buy it? Drivers, gym-goers, cyclists, warehouse and field workers, and anyone who wants one ear free to hear the world while still taking calls and listening to music. Who should skip it? If you need a boom microphone positioned right at your mouth for professional-grade voice capture, or if you need a wired connection that never drops, this isn't that product. It's a lifestyle earpiece, not a UC workhorse — and the plastic-and-silicone build reflects that casual, portable intent.
The EPOS Impact 100 is the opposite philosophy. It's a wired, single-ear (mono) USB-C headset designed explicitly for professional unified communications. It carries Microsoft Teams certification, complete with a dedicated Teams button and notification alerts, which matters if your whole workday runs through Teams meetings, webinars or a call queue.
The connectivity story is refreshingly simple: plug into a laptop, desktop or mobile device via USB-C, and use the included USB-A adapter for older machines. No pairing, no charging, no battery anxiety. You plug in and you're live. For anyone who has ever had a wireless headset die mid-presentation, that reliability is the selling point.
The boom microphone is flexible and noise-cancelling, positioned to capture your voice up close and filter out office chatter — exactly what you want in an open-plan workspace or a busy contact center. The mono design with soft silicone side support keeps one ear open so you stay aware of your surroundings, and at 51 grams it's built to disappear on your head over a long shift.
Controls sit on an in-line module with backlit buttons for volume, mute and Teams alerts, so you're not fumbling through software menus mid-call. The build uses leather and silicone, and EPOS backs it with a 2-year manufacturer warranty — a longer coverage window than the AYI's 1-year term, which fits the "daily professional grinder" positioning.
Who should buy it? Remote workers, office employees, customer support agents, teachers running webinars, and anyone whose job is voice-first. Who should skip it? If you want to listen to music on a run, take calls while driving, or move around the room untethered, the cable and voice-focused tuning will frustrate you. The 8 kHz frequency response is tuned for speech intelligibility, not for enjoying a bass-heavy playlist.
Side-by-Side: Which Should You Choose?
• Best for professional call clarity → EPOS Impact 100. A flexible noise-cancelling boom mic captures your voice directly instead of relying on a distant mic.
• Best for long listening sessions on a charge → AYI Earpiece Headphone Dual. Up to 10 hours of music and 15 hours of talk time per charge.
• Best for plug-and-play reliability → EPOS Impact 100. Wired USB-C with a USB-A adapter means zero pairing and zero battery management.
• Best for workouts and driving → AYI Earpiece Headphone Dual. Dust and sweat resistant, open-ear, and light enough to forget you're wearing it.
• Best for Microsoft Teams environments → EPOS Impact 100. Certified for Teams with a dedicated button and alert notifications.
• Best for switching ears on the fly → AYI Earpiece Headphone Dual. The changeable earhook lets you move it left or right whenever you like.
• Best for all-day office wear with a warranty cushion → EPOS Impact 100. Soft silicone side support, 51 g, and a 2-year manufacturer warranty.
In my opinion, the right pick comes down to one question: are you mobile or are you at a desk? If your calls happen in a car, on a warehouse floor, on a bike or between gym sets, I'd buy the AYI Earpiece Headphone Dual — the wireless freedom, changeable earhook and long talk time are exactly what that life needs. If your calls happen in Teams, at a desk, all day, I'd buy the EPOS Impact 100 — the boom mic, wired reliability and Teams certification are worth far more than wireless convenience in that setting. They're not really competitors so much as two tools for two different jobs.
For personal phone calls on the move, the AYI's dual-mic noise reduction and wireless Bluetooth design fit better. For professional softphone calls where your voice quality is being judged, the EPOS boom mic captures speech more directly. It depends on whether you're chatting or conducting business.
Yes — it connects via USB-C, so it works with laptops, desktops and mobile devices that support USB-C audio, and the included USB-A adapter covers older computers. Just note it's a wired headset, so there's no Bluetooth pairing involved.
Yes. It uses a 40mm dynamic driver with a 20 Hz–20,000 Hz range and is described as delivering bass-forward stereo sound, so it's designed for both music and voice. The EPOS, by contrast, is tuned to an 8 kHz speech-focused range, so it's the weaker choice for listening to music.
Both sit in very different categories, so "value" depends on your use case rather than a single number. Check the current price on Amazon for each and weigh it against what you actually need — wireless music and mobility, or certified, wired professional call quality. My honest take: buy for the job, not the label.
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