How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want a complete, ready-to-wear listen-only earpiece for a two-way radio speaker mic — hook, cable, plug and all — choose HYS 3.5mm; if you need a set of replacement earmolds to refresh an acoustic coil tube kit you already own, choose AIRSN Replacement Earmold Earpiece.
• HYS 3.5mm — biggest strength: a full G-Shape over-ear listen-only headset with a 3.5mm plug, coiled cable and Kevlar-reinforced wiring, so it works the moment you unbox it.
• HYS 3.5mm — biggest trade-off: it's one listen-only earpiece with a fixed 3.5mm jack, so it only makes sense if your radio speaks through a speaker mic or transceiver with that jack.
• AIRSN Replacement Earmold Earpiece — biggest strength: medical-grade polymer earmolds in three sizes (small, medium, large) that fit most coil tube audio kits and either ear.
• AIRSN Replacement Earmold Earpiece — biggest trade-off: it's a replacement part, not a working headset — the clear coil tube is not included and you need an existing acoustic tube kit to use it.
• Who each pick is for: HYS 3.5mm for security guards, warehouse staff, EMTs and event crews who want a private listen-only earpiece out of the box; AIRSN for anyone whose coil tube earpiece has worn out and who just needs fresh earmolds.
The HYS 3.5mm is a listen-only ear piece built around one job: letting you hear radio traffic privately instead of broadcasting it to everyone within earshot. It's a wired, in-ear earpiece with a G-Shape hook that anchors over the top of your ear, a coiled cable that keeps the cord at roughly waist level, and a 3.5mm audio jack that plugs into the speaker mic or transceiver. That combination is exactly what you want on a retail floor, a loading dock or a warehouse aisle, where a radio crackling out loud tells customers and bystanders everything your team is saying.
The specs tell a fairly specific story about who this suits. A 32-ohm impedance dynamic driver with a 20 Hz – 20,000 Hz frequency range is a normal, easy-to-drive load — it's designed to deliver clear audio at low volume, which matters when you're in a noisy environment and don't want to crank the gain just to catch a dispatch. The plastic hook enclosure and Kevlar-reinforced cable are aimed at daily wear rather than occasional use, and the hook is adjustable for the left or right ear. If you're working 8 to 12-hour shifts — patrols, forklift operation, outdoor events, farm work — that combination of a hook that stays put and a cable that doesn't dangle is the whole point. Compatibility is broad: it's listed for Motorola PMMN4013A, PMMN4029 and PMMN4015A, Kenwood KMC-45 and KMC-25, plus Icom, Midland, Uniden, Yaesu and Vertex gear, and it also works with scanners and MP3 players.
Who should skip it? Anyone whose radio doesn't feed audio through a 3.5mm jack on a speaker mic or transceiver, and anyone who already owns a coil tube kit and just wants to replace the soft part — this isn't that product. It's also a listen-only piece with no microphone and no noise control, so it's not a two-way headset for people who need to transmit through the earpiece itself. If you need to talk, you're still talking into the radio or mic.
The AIRSN Replacement Earmold Earpiece is a consumable, and it's honest about that. It's a pair of black earmolds — the soft bud that sits in your ear at the end of an acoustic coil tube — made from a durable, hypoallergenic, medical-grade polymer. The silicone enclosure is the detail that matters most here: it's the material choice you want in something that sits in your ear canal for hours, and it's the reason AIRSN can describe it as comfortable for long periods of time.
The sizing is the other practical strength. These come in three sizes — large, medium and small — and they fit either the left or right ear, so you're not locked into a one-size compromise or a side-specific part. They're built to fit most coil tube audio kits and are listed as compatible with Motorola and Kenwood two-way radio air acoustic coil tube kits. If your existing earpiece has gone hard, cracked, or simply stopped sealing well against your ear, this is the fix: you keep the tube and the radio setup you already have and just swap the mold.
Who should skip it? Anyone expecting a plug-and-play headset. The clear coil tube is not included, so if you don't already own an acoustic tube audio kit, this pair of earmolds has nothing to attach to. There's no cable, no 3.5mm jack, no hook, and no driver here — it's the soft interface between your ear and a tube you already own. It also won't help if your problem is a damaged tube rather than a worn mold, since the tube isn't part of the package. Think of it as a maintenance item: inexpensive, unglamorous, and genuinely useful if you're already in the coil tube ecosystem.
• Best for a complete, ready-to-use setup → HYS 3.5mm. Hook, coiled cable and 3.5mm plug are all in the box.
• Best for replacing a worn-out earmold → AIRSN Replacement Earmold Earpiece. It's the part that wears out first, and it's sold on its own.
• Best for private listen-only radio monitoring → HYS 3.5mm. The design is built around keeping dispatch audio in your ear and out of the room.
• Best for fit and ear comfort → AIRSN Replacement Earmold Earpiece. Three sizes and a hypoallergenic medical-grade polymer, versus HYS's single in-ear hook design.
• Best for long shifts with movement → HYS 3.5mm. The adjustable G-Shape hook and waist-level coiled cable are aimed squarely at active 8–12 hour work.
• Best for compatibility with what you already own → AIRSN Replacement Earmold Earpiece. It fits most coil tube kits from Motorola and Kenwood, so you're upgrading rather than rebuilding.
• Best for low-volume clarity in noise → HYS 3.5mm. The 32-ohm impedance is specified to give clear audio without pushing the volume.
• Best for scanners, MP3 players and oddball 3.5mm sources → HYS 3.5mm. The 3.5mm jack opens it up beyond two-way radios.
My Verdict
An ear piece is the small in-ear component that delivers audio to a single ear — in radio work, usually the soft bud or mold at the end of a cable or acoustic tube. The HYS 3.5mm is a complete listen-only ear piece with a G-Shape hook, coiled cable and 3.5mm plug. The AIRSN Replacement Earmold Earpiece is just the mold portion, made from a medical-grade polymer, meant to slot onto an existing coil tube.
Singers use in-ear monitors to hear a mix or a click track privately on stage — the same broad idea as a radio ear piece, which keeps audio in one ear instead of filling the room. Neither product here is a stage monitor: the HYS 3.5mm is a listen-only radio earpiece for speaker mics with a 3.5mm jack, and the AIRSN earmolds are replacement buds for two-way radio acoustic coil tube kits. For singing, you'd want a dedicated monitor system, not either of these.
In the two-way radio world, an ear piece is the part you wear in your ear so dispatch and team traffic stays private. The HYS 3.5mm does that with a 32-ohm dynamic driver and a 20 Hz – 20,000 Hz range, feeding off a 3.5mm jack. The AIRSN earmolds do it differently — they're the soft black interface at the end of an acoustic coil tube, and they come in small, medium and large to fit most coil tube kits.
They're in-ear monitors, feeding a controlled mix straight into the ear so the performer hears the band and their own voice over stage noise. That's a different job from a radio ear piece, which is about receiving instructions privately. If you want the radio version, the HYS 3.5mm is the complete listen-only option; if you only need to refresh a coil tube kit, the AIRSN earmolds in three sizes are the practical pick.
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