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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-17 · 6 min read · Independent comparison
• Pulsat Earmold Silicone Fin — biggest strength: it is built purely for covert listening. The silicone earmold sits in the ear and channels sound only to you, which is exactly what surveillance earpieces and two-way radio setups need.
• Pulsat Earmold Silicone Fin — biggest trade-off: it is a passive earpiece accessory, not a headset. There is no Bluetooth, no battery, no microphone and no music features — it only works with the radio or surveillance gear you already own.
• Sunffice Open Ear Headphone — biggest strength: a full wireless headset in one ear — Bluetooth 5.4, an open-ear hook design, a noise-canceling mic, up to 28 hours of music playtime, IPX5 water resistance and touch controls.
• Sunffice Open Ear Headphone — biggest trade-off: it is a single earpiece, so you get one side only, and it is plastic-bodied with an open-ear fit rather than an in-ear seal, so isolation is minimal by design.
• Who each pick is for: Pulsat for security staff, event crew and radio users who need discreet in-ear audio; Sunffice for drivers, commuters, runners and business users who want one wireless earpiece for calls and music.
The Pulsat Earmold Silicone Fin is a pair of silicone earmolds made to sit in your ear and connect to a surveillance earpiece or two-way radio. That is the whole job, and it does it without any electronics at all. The soft silicone is the point here — the manufacturer explicitly suggests it for anyone wearing an earpiece for more than three hours, which tells you the design is aimed at comfort over a long shift rather than short bursts of listening.
The second selling point is discretion. Because the fin directs sound only into your ear, the audio stays private. Nobody standing next to you hears your radio traffic, and you are not holding a device up to your face. For anyone working security, door supervision, retail loss prevention, event management or any job where a radio earpiece is part of the uniform, that combination of comfort and quiet is the reason this product exists. It comes in white silicone and is sold as a pair, so you have a spare or a set for two radios.
Sunffice Open Ear Headphone: Who It's For
The Sunffice Open Ear Headphone is a completely different animal: a single-ear Bluetooth headset that rests outside your ear canal instead of inside it. The open-ear hook design is the headline. Because nothing plugs your ear, you keep hearing traffic, colleagues and announcements while audio plays, and there is no in-ear pressure building up over a long day. At 8.5 g with an adjustable earhook that rotates for either ear, it is built to be worn for hours without you thinking about it.
On the tech side, Sunffice packs in Bluetooth 5.4 for a stable low-latency link within roughly 10 metres, a dynamic driver for bass and stereo sound, a noise-canceling microphone for calls, touch controls for music, volume and calls, and an IPX5 rating so sweat and rain are not a problem. Battery life is quoted at up to 28 hours of music and 35 hours of talk time, and it charges over USB-C. It works with iOS and Android phones, tablets and laptops, and the voice prompts can be switched between Chinese and English by double-clicking the function key while the headset is on but not connected.
The catch is right there in the box: this is one earpiece, not two. If you want stereo in both ears, this is not that product. The plastic build and open-ear fit also mean you get very little noise isolation — you hear the world, which is the point for running, cycling, hiking and driving, but a poor match if you want to block out a noisy train. It suits drivers, delivery riders, business users on calls all day, and anyone who wants one ear free for the real world. If you need immersive, sealed listening, look elsewhere.
Side-by-Side: Which Should You Choose?
• Best for long-wear comfort in-ear → Pulsat Earmold Silicone Fin. The silicone construction is specifically aimed at people wearing an earpiece for more than three hours.
• Best for wireless freedom → Sunffice Open Ear Headphone. Bluetooth 5.4 with a 10-metre range and no cable to a radio.
• Best for battery life → Sunffice Open Ear Headphone. Up to 28 hours of music playback and 35 hours of talk time on one charge.
• Best for calls and meetings → Sunffice Open Ear Headphone. The noise-canceling mic and touch controls make it a proper hands-free headset.
• Best for sport and weather → Sunffice Open Ear Headphone. IPX5 water resistance covers sweat and rain; the Pulsat has no water rating listed.
• Best for staying aware of your surroundings → Sunffice Open Ear Headphone. The open-ear design leaves your ear canal clear; the Pulsat seals sound in.
• Best for a two-ear setup → Pulsat Earmold Silicone Fin. It ships as a pair; the Sunffice package contains exactly one earpiece.
If I had to pick one, I would buy the Sunffice Open Ear Headphone for general, everyday use. In my opinion it is the far more versatile product: one device covers calls, music, driving, running and long workdays, and the open-ear fit plus IPX5 rating fits real life better than a sealed in-ear mold. I would only go with the Pulsat Earmold Silicone Fin if my job already revolves around a surveillance earpiece or two-way radio and I need discreet, comfortable in-ear audio for long shifts. If price matters to you, check the current price on Amazon before deciding — the button on this page will show you the live figure.
FAQ
No. It is a passive silicone earmold for surveillance earpieces and two-way radios, with no Bluetooth, battery or electronics of its own.
The microphone uses noise cancellation for calls, but the open-ear design deliberately leaves your ear canal clear, so you still hear your surroundings. It is not an isolating headphone.
The Sunffice carries an IPX5 water-resistance rating for sweat and rain, while the Pulsat is silicone with no water rating listed. For outdoor and sport use, the Sunffice is the safer pick.
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