If you want adjustable open-ear comfort and longer playback for gym workouts, choose MINDBEAST Open Ear Earbuds; if you need headphones designed for swimming and offline MP3 listening, choose MARLALL Soft Liquid Silicone. For most land-based training, I’d pick MINDBEAST; MARLALL makes more sense when time in the water is central to the decision.
MINDBEAST Open Ear Earbuds vs MARLALL Soft Liquid Silicone at a Glance
• MARLALL’s strength: IPX8 water resistance and built-in 32 GB MP3 storage for swimming; its trade-off is that Bluetooth does not work underwater and playback is listed at up to 7 hours.
• MINDBEAST is for: Gym sessions, outdoor exercise, and calls where an adjustable open-ear fit and longer stated battery life matter.
• MARLALL is for: Swimming and other water activities where a secure open-ear design and music stored on the headphones are priorities.
• Bottom line: Choose around your main setting: MINDBEAST is the more straightforward land-workout option, while MARLALL is the water-focused choice.
MINDBEAST is built around an open-ear design with an over-ear fit. Its standout practical feature is bi-axial adjustment: the earpieces move 55 degrees up and down and 45 degrees front and back. That gives you more ways to position them around your ears than a fixed-fit design. For gym use, that adjustability may be useful if you want to fine-tune how the headphones sit before moving through a workout.
The product uses a 16 mm speaker and the OpenBass Fit design, with a stated frequency range of 20 Hz to 20,000 Hz. Those figures describe its audio hardware, but they don’t establish how it will sound to every listener. The open-ear format also leaves the ears uncovered, which suits someone who wants to remain aware of nearby sounds rather than block them out. There is no listed noise control, so this is not the pick for someone seeking noise cancellation or a sealed listening experience.
MINDBEAST lists up to 20 hours of playtime with the charging box, Bluetooth 5.4, and a wireless range of 20 meters. Its IPX5 rating is intended for exposure to sweat and rain, not immersion in water. I’d consider it for gym sessions, urban exercise, or travel when staying aware of surroundings and reducing the need to recharge are useful. It may be a poor fit for swimming or for anyone who wants a waterproof MP3 player built into the headphones.
How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-20 · 7 min read · Independent comparison
Who should skip this: Skip MINDBEAST if you need headphones for swimming, or if your priority is blocking outside sound.
MARLALL Soft Liquid Silicone: Who It's For
The essential detail is how its listening modes work. Bluetooth is not supported underwater; swimming requires MP3 mode. MARLALL includes 32 GB of built-in storage, so music needs to be stored on the headphones for underwater listening. The listing also notes that music from a phone app cannot be copied directly to the internal memory. That means swimmers should be comfortable managing their own audio files and loading them onto the device through its magnetic charging cable, which also enables computer access to the storage.
MARLALL lists up to 7 hours of continuous playback after 1.5 hours of charging. That is a shorter stated runtime than MINDBEAST’s figure, and it is worth considering if you want one charge to cover long stretches of listening. The product can also use Bluetooth when out of the water, but the provided information does not specify a Bluetooth version or range. I’d choose it for regular swimming, snorkeling, or other water-focused activities where its immersion rating and offline playback solve a real need.
• Best for gym workouts on land → MINDBEAST. Its adjustable fit, open-ear design, and IPX5 resistance suit sweat and rain, though IPX5 is not a swimming rating.
• Best for swimming → MARLALL. It has an IPX8 rating and a stated underwater listening route through MP3 mode.
• Best for longer stated playback → MINDBEAST. Its charging box provides up to 20 hours of playtime, compared with MARLALL’s up to 7 hours of continuous playback.
• Best for offline music in the water → MARLALL. Its built-in 32 GB storage lets you listen in MP3 mode without relying on an underwater Bluetooth connection.
• Best for adjusting the fit → MINDBEAST. The earpieces can be repositioned along two axes, with specified up-and-down and front-and-back movement.
• Best for a workout where you want to hear your surroundings → Either, with a caveat. Both use open-ear designs, but neither product is listed with noise control. Their open fit is not a substitute for hearing protection or a way to eliminate distractions.
• Best for phone streaming during a land workout → MINDBEAST is the clearer spec-based choice. Bluetooth 5.4 and a 20-meter range are listed. MARLALL supports Bluetooth outside the water, but its version and range are not specified.
• Best for someone searching for “with microphone sports earbuds for gym” → Check the call details carefully. MARLALL’s information mentions a microphone and says to dry it after swimming to prevent call issues. MINDBEAST is described as suitable for conference calls, but neither sheet provides microphone performance specifications.
Start with where you’ll actually wear the headphones. For a gym routine built around weights, machines, or land-based cardio, MINDBEAST has a strong practical case: its adjustable ear placement and stated resistance to sweat and rain match that kind of use. If you’re looking for the best ear clip headphones for gym, its over-ear open design is the relevant style to consider, but fit is personal. The adjustment range is useful information, not a guarantee that it will suit every ear.
For pool sessions, MARLALL’s water rating and MP3 mode matter more than its shorter stated playback time. Plan to use stored audio underwater, rather than expecting a phone connection to work in the pool. Its internal storage is listed as 32 GB, but the instructions say that music from a phone app cannot be copied directly to the headphone memory. Consider that setup step before choosing it for regular swim workouts.
The phrase “IPX7 waterproof Bluetooth headphones for gym” can also lead to confusion between water resistance and underwater playback. Neither product should be treated as a Bluetooth device that streams underwater: MARLALL explicitly requires MP3 mode for swimming, while MINDBEAST’s IPX5 rating is for sweat and rain. A higher immersion-oriented rating does not mean Bluetooth signals will function underwater.
Finally, think about the listening experience you want. Both designs leave the ears open, so they may suit someone who wants environmental awareness while exercising. Neither sheet lists noise control, and the stated audio figures alone cannot settle questions about perceived sound quality. If calls are important, MARLALL’s microphone note and MINDBEAST’s conference-call positioning are relevant, but the available specifications do not describe call clarity or microphone performance in detail.
For gym use on land, I’d choose MINDBEAST because its adjustable fit, IPX5 sweat-and-rain resistance, and up to 20 hours of playback from the charging box fit that job more directly.
I’d choose MARLALL instead if swimming is the priority and I’m comfortable loading music for MP3 playback.
My recommendation is MINDBEAST for a general gym routine; MARLALL is the more specialized pick for time in the water.
No. The product information says Bluetooth mode is not supported underwater. Swimming requires MP3 mode, using audio stored on the headphones.
Are MINDBEAST earbuds suitable for swimming?
MINDBEAST lists up to 20 hours of playtime with the charging box. MARLALL lists up to 7 hours of continuous playback after 1.5 hours of charging; the figures describe different charging arrangements, so consider how you plan to use each one.
The available specifications do not establish call quality for either product. MINDBEAST is described for conference calls, while MARLALL’s information mentions a microphone and advises drying it after swimming to prevent call issues.
• Amazon Renewed JBL Tune 710BT vs Sony WHCH720N
• noot products K11 vs T-fun NC35: Headphones for Small Heads
As an Amazon Associate I earn from qualifying purchases.
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.
When you buy through links on this page, we may earn a commission from qualifying purchases at no extra cost to you.
Amazon and the Amazon logo are trademarks of Amazon or its affiliates. This site is an independent third-party review and is not affiliated with, endorsed by, or sponsored by Amazon or the product brands mentioned.