We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-20 · 6 min read · Independent comparison
If you want to upgrade the sound and fit of your existing earbuds with body-heat-activated memory foam tips, choose COMPLY Memory Foam Replacement; if you need standalone silicone earplugs that block noise for sleeping, swimming, and loud jobs, choose BBTO 3.
• COMPLY Memory Foam Replacement — biggest strength: Body-heat activated memory foam molds to your ear for a secure, noise-isolating seal that stays put during runs and workouts, plus it enhances bass and clarity on earbuds you already own.
• COMPLY Memory Foam Replacement — biggest trade-off: It's a replacement tip, not a standalone product — it only works with compatible earbuds, needs gentle hand-cleaning with warm water, and alcohol-based cleaners or lotions can degrade the foam.
• BBTO 3 — biggest strength: Reusable three-layer silicone earplugs that block noise across sleeping, construction, concerts, swimming, and motorcycling, and each of the three sets includes its own storage box.
• BBTO 3 — biggest trade-off: They're earplugs, not earbud tips — they don't attach to any earbud or deliver audio, so they can't improve sound quality or bass the way foam tips can.
• Who COMPLY is for: Earbud owners chasing a better seal, more bass, and a fit that won't slip mid-workout.
• Who BBTO 3 is for: Anyone who needs affordable, reusable hearing protection for sleep, snoring, swimming, or loud environments.
The COMPLY Memory Foam Replacement is a three-pair set of black, medium memory foam ear tips built from Comply True Memory Foam. The core idea is simple: silicone tips sit on top of your ear; memory foam molds to it. Body heat activates the foam, so it gradually takes the shape of your ear canal for a customized fit. That's what drives the all-day comfort claim and the reduced ear fatigue during long listening sessions.
Where it really earns its keep is grip and isolation. The foam is engineered for a more secure hold than silicone, which matters if you run, lift, or move around a lot — the tips are designed to keep earbuds in place instead of slipping out. That tighter seal also blocks outside noise, which is what lets more bass and clarity come through. If you've ever felt your earbuds sound thin or leaky, a proper foam seal is often the fix.
Who should buy it: earbud owners who want a more secure, isolating fit and better low-end from the buds they already have. Who should skip it: anyone whose earbuds aren't on the compatibility list — and anyone who wants earplugs rather than earbud tips. Also plan your cleaning routine: warm water and a soft cloth only, since alcohol-based cleaners and lotions can break the foam down.
BBTO 3: Who It's For
The BBTO 3 is a different animal entirely: three pairs of reusable silicone earplugs in black, grey, and red. Each set ships with its own storage box to keep the plugs clean and prevent them from getting scratched, dusty, or lost. The material is quality silicone with a skin-friendly, non-toxic texture, and the shape imitates the ear canal for a comfortable fit that effectively blocks noise.
The "3" in the name reflects the three-layer structure, which is the design behind the noise reduction. These are built for blocking sound and protecting hearing, not for listening to music. The intended situations are broad: sleeping, snoring, swimming, construction, concerts, shooting, motorcycling, racing, roaring machines, pets, and camping in the wild. That's a genuinely wide net, and it's the reason this product appeals to such different buyers — a light sleeper, a swimmer, and a construction worker could all use the same set.
Comfort and reusability are the other selling points. The silicone is designed to suit all kinds of skin without causing pressure, pain, or irritation, and it's meant to hold up through prolonged wear. When they get dirty, you wash them in warm water and they're ready to go again — over and over, which is what "reusable" is really promising here. The package measures about 5.63 x 4.25 x 1.18 inches and weighs roughly 0.63 ounces, so it's small enough to toss in a bag or bedside drawer. The style is listed for swimming, concerts, and tactical use.
Who should buy it: sleepers, swimmers, travelers, and anyone in loud environments who wants simple, reusable hearing protection with individual storage boxes. Who should skip it: anyone expecting audio playback or an upgrade to their earbuds' sound. These don't connect to any device — they only block noise.
Side-by-Side: Which Should You Choose?
• Best for a secure workout fit → COMPLY Memory Foam Replacement. Memory foam is designed for better grip than silicone so earbuds stay in during running and daily activity.
• Best for sleep, snoring, and swimming → BBTO 3. Silicone plugs are built for blocking noise in exactly these situations, and they're fine to get wet.
• Best for loud jobs and environments → BBTO 3. Construction, shooting, racing, and roaring machines are all listed use cases for these hearing-protection plugs.
• Best for longevity and easy care → BBTO 3. Wash them in warm water and reuse them many times; COMPLY foam needs gentler handling and avoids alcohol-based cleaners.
• Best for keeping things tidy → BBTO 3. Each of the three sets comes with its own storage box, so you can keep one at home, one in a bag, and one at work.
• Best for a customized ear fit → COMPLY Memory Foam Replacement. Body-heat activation molds the foam to your ear canal for a tailored fit and reduced fatigue.
• Best for compatibility flexibility → BBTO 3. These fit all kinds of people with no earbud model requirement; COMPLY only works with specific earbuds.
In my opinion, the right pick comes down to one question: are you trying to improve earbuds you already own, or just block noise? If it's the former, I'd buy the COMPLY Memory Foam Replacement — the body-heat-activated foam delivers the secure seal, grip, and bass boost that silicone tips often can't. If it's the latter, I'd buy the BBTO 3 — three reusable silicone sets with storage boxes cover sleep, swimming, and loud environments at once. They aren't competitors so much as two tools for two different jobs. Check the current price on Amazon for each and match it to which job you actually have.
Not universally. The listing names Powerbeats Pro, Powerbeats, and Flex, and states it's not compatible with Beats Studio Buds. Check your specific model against the compatibility details before ordering.
No. BBTO 3 is silicone hearing protection, not an audio device — it blocks noise but has no speaker or connection to any earbud, so it can't play sound or improve audio quality.
BBTO 3 is designed to be washed in warm water and reused many times, which favors long-term durability. COMPLY foam needs gentler care — warm water and a soft cloth only — and alcohol-based cleaners or lotions can degrade the material, so it wears faster with rough handling.
The silicone is described as skin-friendly and shaped to imitate the ear canal, designed to avoid pressure, pain, or irritation during prolonged use. That makes them a reasonable pick for sleep, though fit is personal.
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