Update 10/25/25 I used the Decibullz earplugs at the pistol range and it performed noticeably better than cheap foam earplugs. Cheap plugs are not enough for me at the pistol range, but the Decibullz alone was suffcient. I would rank the Decibullz at just below cheap plugs with muffs. Decibullz with muffs does an outstanding job of reducing gunfire. I plan on using Decibullz and muffs at the rifle range where local shooter love to use muzzlebrakes. Original review: I was worried about molding these to my ears and whether they would really make a difference compared to traditional foam ear plugs. Turns out that these really deliver what they promise. First, the molding is easy and works perfectly if you follow instructions and watch the video. Start by attaching the plastic ear plug and plastic backing to the mold. Do one ear at a time and keep track of which ear mold is being molded. Check the thermoplastic mold for either a R or L to know the difference. Then heat water to boiling and pour the water into a coffee mug. Place the mold into the mug. Do not put the mold into water that is boiling. Wait 5 minutes. Use a timer. After 5 minutes remove the mold from the mug with a metal spoon and place it onto a plate for 30 seconds to cool. After 30 second put the plug into your ear hole and mold the thermoplastic so that your entire ear conch is covered and sealed. Wait until the mold is hard, about 2 minutes. Repeat for the other ear. If you need maximum hearing protection, remove the plastic plugs and install the rubber ear plugs. I will update this review after I go to the shooting range. Read more
For a while, I was researching a lot of the top choices for hearing protection because my girlfriend and I were going to the Indy 500 for the first time, and we wanted to protect our ears. Having been to NASCAR races before, I knew what I was looking for and I also knew I didn't want over-the-ear ear muffs because they can put some strain on your head and cause sweat to pool around your ears. So, I wanted earplugs to counter these issues. I investigated a lot of options, but Decibullz was the first choice I saw and it stuck with me the whole time. I'll put it simply: These ear plugs are the best out there. With the slightest caveat. Most of the negative reviews for this product are due to user error. If you follow the directions and mold them properly, you will experience NONE of the issues they faced. These ear plugs were comfortable for an entire 3 hour race, no irritation, and no hearing loss at all. No sound bled through, and they didn't ever feel like they were going to fall out. The setup is pretty straightforward, but let me share what I did to make them fit absoultely PERFECTLY: 1. Setup the earplugs while boiling your water. I got the case/laynard/plugs bundle, so I used the non-laynard filters and the smallest tri-flange tip they had. This is to ensure the earplug goes in far enough into your ears to get a good inner mold(very important). 2. Once water and plugs are ready, do ONE PLUG at a time!!! This is crucial. The steps say to do both, but it is much easier when you can focus on one plug at a time. Let it sit in the water for 5-6 minutes. 3. Gently scoop the plug out with a spoon. I used a metal spoon and had no issues. And let it cool until you can touch it. Be careful not to squeeze too hard! 4. This is the most important part: Carefully put the plug in your ear. Make sure to rest it in your ear, and then ONLY push where the filter is initially. Making sure the plug is IN your ear properly is the most crucial step! And make sure it is in as comfortably far as possible. 5. Begin to massage the plug into the space of you ear. I focused on pushing to the back of my ear, then massaging above my ear lobe, and then the front of the ear. And then keep pushing on the filter to maintain that seal. Keep doing this for a few minutes. Also, very useful to have another person helping, but a mirror works too to ensure the whole ear canal is covered. 6. During this process, I also was squeezing my ear (top and bottom, front and back) around the mold to make sure it took total shape of my ear and to ensure it's not going to hurt my ears for being in a long time. 7. Once the plugs are hardened, carefully take them out and let them cool. Then repeat the steps for the other ear plug. 8. After all the plugs are molded, it is important to test the plugs TWO different times. First, test both plugs in at the same time to ensure the sound around you is at least muffled. Have some air blow into each ear. If you hear a lot of air/wind, then it is best to try and refit them to make sure your whole ear hole is covered. 9. If that test passes, then you will want to switch to the foam ear tips (these offer the best noise cancellation). Squeeze the foam tips so they compress and go further in the ear. Do the same test as the last step. If you have the same issue, make sure to change the tips BACK to the ones you used initally and then repeat the steps to refit them/warm them back up. 10. The plugs should significantly reduce the sound. Almost like you're underwater. But you should still be able to hear mostly everything. It reduces the noise, not cancel it out. For anyone looking to use these plugs for the same application as me (in-person auto racing spectating), then these are absolutely PERFECT! I was able to hear the cars go by at a reasonable volume, AND I could still talk to my partner between passes and hear the announcer clearly over the speakers. Because of how great these plugs were, I definitely anticipate using these for other applications (concerts, more races, anything that is loud). If you were on the fence about getting these plugs, please let this review be the sign to get them. Ignore the bad reviews, because they more than likely did not install them correctly. TLDR: Bought these plugs for IndyCar/NASCAR races, and worked perfectly for that application. I shared the steps I took to make them fit right, and experiencd none of the negatives the bad reviews shared because I followed the steps. Highly recommend getting these plugs! Read more
*“The best fit I’ve ever had – just a few tweaks and they’re perfect for work, sleep, and concerts.”* --- ### Why I Bought Them I’m a freelance sound engineer who spends half the day in noisy studios and the other half trying to catch a few hours of sleep in a city apartment. Over‑the‑counter foam plugs either “pop out” after a few minutes or muffle everything so much that I can’t hear alarms or my phone. The 31 dB rating promised a solid reduction without completely cutting off useful sounds, and the custom‑mold promise sounded like the perfect middle ground. --- ### The Ordering & Fit Process (5‑minute summary) | Step | What I Did | Tips | |------|------------|------| | **1. Impression Kit** | Mixed the silicone, pressed it into my ear canal with the supplied applicator, waited 5 min, then removed the set‑in‑place impression. | Keep the ear canal clean and dry before starting; a quick wipe with an alcohol pad helps the silicone cure evenly. | | **2. Shipping** | Sent the impression back in the prepaid envelope. | Label the package clearly and drop it off at the nearest post office within 24 h to avoid any delays. | | **3. Receive the Molds** | Got two identical earplugs in a small, sturdy box (plus a tiny cleaning brush). | Store them in the provided case when not in use; the silicone can pick up dust over time. | | **4. Insertion** | Gently pulled the outer ear up and back, slid the plug in until it “clicked.” | Don’t force them—if you feel resistance, rotate slightly and try again. The click means the flange is seated properly. | --- ### Performance (What the 31 dB actually feels like) | Situation | Noise Level (dB) | What I Hear | How Comfortable | |-----------|------------------|-------------|-----------------| | **Live Concert (≈95 dB)** | Reduced to ~64 dB | Music is still clear, but the crowd roar is softened. | No pressure after 2 h; they stay in place. | | **Construction Site (≈85 dB)** | Reduced to ~54 dB | Heavy machinery is audible but not painful; I can still hear safety alarms. | Slight warmth after 3 h, but no pain. | | **Bedroom (≈45 dB street noise)** | Reduced to ~14 dB | Almost complete silence; I can still hear my phone’s vibration. | Perfect for falling asleep; no “plug in the ear” feeling. | | **Studio Monitoring (≈70 dB)** | Reduced to ~39 dB | I can still pick up subtle cues in the mix, which is essential for my work. | Comfortable for long sessions (up to 6 h). | **Bottom line:** The 31 dB rating is a sweet spot—loud enough to protect you, quiet enough to stay aware of important cues. --- ### Pros 1. **Perfect Fit** – The custom molding eliminates the “wiggle” you get with foam or generic silicone plugs. No more readjusting every 10 minutes. 2. **Consistent Attenuation** – The 31 dB reduction is reliable across frequencies (125 Hz‑8 kHz), which is rare for cheap plugs that only block high frequencies. 3. **Durable Material** – Medical‑grade silicone feels soft yet holds its shape for months. I’ve used them daily for 4 months with no cracks. 4. **Easy Maintenance** – A tiny brush and the included cleaning solution keep them hygienic; a quick rinse with warm water works too. 5. **Discreet** – They’re low‑profile, so they don’t stick out in a professional setting or on stage. --- ### Cons 1. **Price Point** – At ~$45 for a pair, they’re pricier than bulk foam plugs. However, the lifespan (6‑12 months with proper care) makes the cost per use comparable. 2. **Initial Time Investment** – The impression kit takes about 10 minutes, plus shipping time (usually 3‑5 business days). Not ideal if you need earplugs immediately. 3. **One‑Size‑Fits‑All for the Ear Canal** – While the outer shape is custom, the internal channel is a standard size. Extremely narrow or unusually shaped canals may feel a tiny bit tight. --- ### Who Should Buy Them | User Type | Why It Works | |-----------|--------------| | **Musicians / Concert‑goers** | Protects hearing without sacrificing musical fidelity. | | **Industrial Workers** | Blocks hazardous noise while still letting safety alarms through. | | **Travelers & Sleepers** | Comfortable for long wear; reduces snoring and city noise. | | **Audio Professionals** | Allows precise monitoring in loud environments. | | **Kids with Sensitive Ears** | (Only if you can get a parent‑supervised impression) – the custom fit prevents the plugs from falling out. | --- ### Tips for Getting the Most Out of Them 1. **Re‑mold Annually** – Ear canals can change slightly with weight fluctuations or age. The company offers a discount on a second impression kit. 2. **Store Dry** – After cleaning, let them air‑dry completely before placing them back in the case. Moisture can lead to odor over time. 3. **Rotate Usage** – If you wear them >6 h a day, give your ears a 15‑minute break to prevent mild skin irritation. 4. **Use the Carrying Case** – It’s small enough for a pocket or a studio bag, and it protects the plugs from bending. 5. **Check the Fit Periodically** – If you notice a “loose” feeling, gently push the flange back in; the silicone will reseat itself. --- ### Bottom Line Custom‑Molded Earplugs with a 31 dB attenuation rating deliver exactly what the description promises: a comfortable, secure fit that reduces harmful noise while still letting you hear what matters. They’re a solid investment for anyone who needs reliable hearing protection on a daily basis—especially professionals who can’t afford to lose audio fidelity. **Would I buy them again?** Absolutely. The only thing that could make them a perfect 5‑star product is a faster “instant‑fit” option for those who need earplugs yesterday. Until then, they’re the best blend of comfort, protection, and durability I’ve found on Amazon. *— A sound‑engineer who’s finally slept through a night of city traffic, thanks to these plugs.* Read more
