We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-23 · 8 min read · Independent comparison
If you want a two-pin acoustic tube headset built specifically around Motorola radios and you like the idea of getting two complete earpieces in the box, choose Remtise Acoustic Tube Earpiece; if you need a Kenwood-style two-pin surveillance kit with a big glove-friendly PTT button, a longer reach from plug to earbud, and a stated six-month warranty, choose KS K-STORM Radio Acoustic Tube.
• Remtise Acoustic Tube Earpiece — biggest strength: Motorola-focused two-pin compatibility across a very long list of BPR40, CP, CLS, DTR, PR, RDU and RMU series radios, plus two earpieces and two pairs of medium earmolds in the box.
• Remtise Acoustic Tube Earpiece — biggest trade-off: It is a wired 2.5 mm jack design with no noise-control feature listed, so it is a passive acoustic tube headset, not a noise-cancelling one.
• KS K-STORM Radio Acoustic Tube — biggest strength: A large in-line PTT that is designed to stay usable while wearing gloves, a soft silicone mushroom earbud, and a stated working length of about 150 cm from plug to earbud.
• KS K-STORM Radio Acoustic Tube — biggest trade-off: It is explicitly not compatible with Motorola or Midland radios, so if your fleet is Motorola this kit is the wrong pinout.
• Who each pick is for: Remtise for Motorola-based security, patrol and team operations where a spare earpiece matters; KS K-STORM for Kenwood, Baofeng, Retevis, Wouxun, Puxing or Arcshell users who want a big gloved-hand PTT.
The Remtise Acoustic Tube Earpiece is an in-ear surveillance headset for Motorola two-way radios. The plug is a two-pin standard layout — 2.5 mm and 3.5 mm pins spaced 5 mm apart — with electroplated metal pins and an anti-oxidation finish intended to keep contact reliable over time. The earpiece itself is a rounded-tip, in-ear design with a dynamic driver rated from 20 Hz to 20,000 Hz, and it uses a transparent acoustic tube to carry sound from the earphone to your ear.
That tube is the whole point of this style of headset. Because the transducer sits away from your ear canal and the sound travels up a thin tube, the earpiece stays discreet and the cable route is easier to hide under a collar or jacket. Remtise positions this headset for police and security personnel, patrol duty, large team activities, business events and entertainment venues — in other words, people who are on their feet, moving, and need to hear radio traffic without holding a handset.
The build details matter for that kind of work. The clip is described as holding tight and not falling off randomly, and the PU cable is rated for tensile strength up to 5 kg, with a coiled section that adds flexibility and reach. In the box you get two acoustic tube earpieces and two pairs of medium earmolds, which is genuinely useful if you rotate staff or want a spare in a duty bag.
Who should skip it: Kenwood, Baofeng, Retevis or Wouxun users — the pinout here is aimed at Motorola-style radios. And if you specifically want an oversized PTT designed for gloved hands, this one is a standard in-line PTT rather than a jumbo button.
KS K-STORM Radio Acoustic Tube: Who It's For
The KS K-STORM Radio Acoustic Tube is the mirror image of the Remtise headset: same broad idea (two-pin acoustic tube surveillance earpiece with an in-line mic and PTT), aimed at a different radio ecosystem. The two-pin 3.5 mm and 2.5 mm plug is built for Kenwood-style radios, and the brand lists compatibility with Kenwood, Puxing, Wouxun, Baofeng, Retevis and Arcshell — including the very common Baofeng UV-5R and BF-F8HP, and Retevis RT21, RT22 and Arcshell AR-5.
Two features stand out. First, the PTT is deliberately big, and KS K-STORM states that wearing gloves does not affect key operation. If you work outdoors in cold weather, on a construction site, or anywhere you keep gloves on all shift, that is a real quality-of-life difference — you are not hunting for a small button with a numb thumb. Second, the earbud uses soft silicone in a mushroom shape, which the brand says is comfortable enough to forget it's there, and it's an interchangeable universal acoustic tube, so you can swap the tube if it gets damaged.
Length is another practical detail. From plug to PTT is roughly 94 cm, and the maximum working length from plug to the earbud is about 150 cm. That's enough cable to run the earpiece up under a shirt with the PTT clipped at chest or waist level — the brand explicitly notes the earpieces can be worn underneath clothing to keep a professional look. The cable is PU, stated to withstand 5–10 kg, and the pins use an electroplating anti-oxidation coating, same idea as the Remtise plug.
Who should buy it: Kenwood, Baofeng, Retevis, Wouxun, Puxing or Arcshell users who want a discreet in-ear headset with a large, glove-friendly PTT and a long cable run. It fits security guards, construction workers, waiters, attendants, hospital and restaurant staff, hotel and warehouse teams — the classic jobs where you're talking while your hands are busy.
Who should skip it: Motorola and Midland users. KS K-STORM says it plainly — this earpiece does not work with those radios. Buying it for a Motorola fleet is the one mistake this headset cannot recover from. It also comes as a stated two-pack with a six-month warranty description, so if you only need one headset, factor that in.
• Best for Motorola radios → Remtise Acoustic Tube Earpiece. The compatibility list runs across BPR40, CP, CLS, DTR, DLR, GP, PR, RDU, RDV, RMU, RMV, SP, XTN, XV, XU and VL series, plus HYT and TEKK models.
• Best for Kenwood, Baofeng, Retevis, Wouxun or Arcshell radios → KS K-STORM Radio Acoustic Tube. UV-5R, BF-F8HP, RT21, RT22 and AR-5 are all named.
• Best for gloved hands → KS K-STORM Radio Acoustic Tube. The oversized PTT is designed so gloves don't block the key press.
• Best for discreet in-ear wear → both. Both are in-ear acoustic tube designs meant to be tucked under clothing; neither is an over-ear headset.
• Best for cable reach → KS K-STORM Radio Acoustic Tube. About 150 cm working length from plug to earbud, versus a coiled PU cable on the Remtise.
• Best for a spare in the box → Remtise Acoustic Tube Earpiece. Two earpieces and two pairs of medium earmolds are included.
• Best for stated warranty coverage → KS K-STORM Radio Acoustic Tube. A six-month warranty is described.
• Best for comfort over long shifts → KS K-STORM Radio Acoustic Tube. Soft silicone mushroom earbud, per the brand's own description.
In my opinion, the deciding factor here is not quality — it's your radio. Both headsets use the same acoustic tube concept, the same 20 Hz–20,000 Hz dynamic driver range, and similar PU cable and electroplated pin construction. They are close cousins aimed at different pinouts.
If your radios are Motorola, I would buy the Remtise Acoustic Tube Earpiece — the compatibility list is the deepest part of its case, and the two included earpieces plus spare earmolds make it the more practical kit for a team. If your radios are Kenwood, Baofeng, Retevis, Wouxun or Arcshell, I would buy the KS K-STORM Radio Acoustic Tube instead, mainly for the glove-friendly PTT and the longer, more forgiving cable. Neither is the right buy for the other's radio brand — that's the whole decision.
what is in ear headset
An in-ear headset is one where the speaker sits inside or right at the entrance of your ear canal, rather than covering the whole ear. Both products here are in-ear acoustic tube designs: a thin transparent tube carries sound from a small transducer up to an earpiece that rests in your ear, with the mic and PTT on an in-line module on the cable.
what is over ear headset
An over-ear headset has cups or a band that sit over or around your whole ear — the kind of thing you'd wear for music or gaming. Neither the Remtise nor the KS K-STORM headset is over-ear. Both are in-ear, which is why they're the style chosen for surveillance and security work where you want the headset hidden under clothing.
how to wear one ear headset
Slip the earpiece into one ear so the tube hangs naturally, then run the cable down inside your shirt. Clip the PTT where your hand falls — chest or waist — and route the acoustic tube so it doesn't pull on the earbud. Both headsets are designed for this single-ear, under-clothing setup, which is why the cable length and clip strength matter.
how to open headset ear
If you mean opening or replacing the earpiece, the KS K-STORM uses an interchangeable universal acoustic tube, so the tube and earbud can be swapped. The Remtise ships with two pairs of medium earmolds, which fit onto the earpiece. Neither is a sealed unit — the soft parts are meant to be replaced or cleaned as they wear.
One last practical note: I can't quote you a figure for either headset here, and I wouldn't want to guess. If budget is your deciding factor, check the current price on Amazon for both and compare them side by side before you commit.
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See also: Plantronics Voyager Legend vs Remtise Acoustic Tube Earpiece, Reyinl Two-Way Radio Ear-Clip vs Ansumg Magnetic Anti-Lost Straps, Midland BA2 vs Generic Renastar Overhead Earpiece: Over Ear