Piegricdiat is my pick among these rdx earbuds for swimming, thanks to its stated IPX6 protection and underwater-use claim.
Houlyn is the runner-up for sleep, with a low-profile design, touch controls, and a stated six-hour battery life.
rdx earbuds at a Glance
• Houlyn Invisible Sleep Earbuds — best for sleeping and everyday wireless listening; pick this if you want touch controls, automatic reconnection, and a stated six-hour battery life.
• Bordsek USB C — best for wired listening on a USB-C device; pick this if you want an inline microphone and remote without relying on a wireless connection.
• KZ Gale — best for wired gaming and calls; pick this if you want an ear-hook fit, microphone, and a 3.5 mm connection.
• UNLEASY 2Pack — best for keeping a spare pair of wired earbuds; pick this if your device has a Lightning connector and you want two pairs in the package.
Piegricdiat is the only option here whose published details directly combine a swimming claim with a specific waterproof rating: IPX6. Its listing also says it can be used underwater for more than six hours continuously. That makes it the clearest candidate in this group for someone specifically looking for rdx earbuds for swimming, although the stated claims alone are not a substitute for checking whether a product suits your particular swim routine.
The design is aimed at sleep as much as sport. These are small, in-ear Bluetooth earbuds with soft silicone tips and caps, and the maker describes them as low-profile for side sleepers. In practical terms, that shape is intended to keep the earbuds from protruding far when your head rests on a pillow. The claimed comfort may also appeal to people who want a compact option for quiet listening in bed.
Bluetooth 5.3 means there is no cable connecting the earbuds to the source device. The product information describes pairing with smartphones, touch controls, and a noise-reduction microphone. Those features could make it useful beyond the pool: you could listen wirelessly, take calls, or use it as a sleep-focused set. The listing also describes sound isolation rather than active noise cancellation, so I would not assume it electronically removes surrounding noise.
The trade-off is that its broad set of claims leaves important buying questions unanswered. The available details do not give a standard battery-life figure for ordinary listening, and “more than six hours” is presented specifically as an underwater-use claim. If your priority is known runtime or a straightforward wired connection, the sheets here do not establish those advantages. Still, I recommend Piegricdiat for this guide’s swimming-focused use because it is the only one with an explicit IPX6 rating and underwater-use statement.
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-16 · 8 min read · Independent comparison
Houlyn is a small, wireless model built around sleep and discreet daily wear. Its low-profile shape and silicone tips are intended to sit close to the ear, which may suit someone who dislikes larger earbuds sticking out while lying on their side. The same compact format could work for commuting or other everyday listening when a bulky headset feels like too much.
The feature set is straightforward for wireless use. Houlyn lists touch controls for music, calls, volume, and a voice assistant, along with automatic reconnection to the last paired device when the earbuds come out of their case. That can reduce setup steps between listening sessions. The stated battery life is six hours, giving shoppers a concrete runtime reference, though the listing does not provide a separate figure for the charging case.
Houlyn’s IPX5 protection is described for workouts, running, and daily use. That is a useful distinction from a product explicitly presented for swimming: the provided information does not say Houlyn is suitable for underwater use. I would not choose it for swimming based on this listing. Its stronger fit is sleep, casual wireless listening, and users who want the convenience of touch controls.
There is also a practical limitation for anyone who prefers physical buttons. Touch controls can be convenient, but shoppers who want tactile controls may prefer a wired remote such as the ones on Bordsek or UNLEASY. In my opinion, Houlyn is the runner-up overall because it provides a clearly described sleep-oriented shape and a stated six-hour battery life, but its published waterproof details do not make it the swimming pick.
Bordsek takes a different approach: it is a wired USB-C earbud set rather than a wireless sleep or sport model. It includes an in-line microphone and remote, with controls for playback, calls, volume, track selection, and voice assistants. For someone who listens on a compatible phone or other USB-C device, the wired connection avoids pairing and charging the earbuds.
The listing describes 14.2 mm dynamic drivers and a built-in DAC, with a four-foot cable, clothing clip, and three sizes of silicone tips. Those details point to a more conventional everyday setup: choose a tip size, connect the plug, and use the remote while listening or handling calls. The cable length and clip may help keep the cord from moving around as much during regular use.
Compatibility needs attention before buying. Bordsek uses USB-C, and the product details warn that the device must support audio through its USB-C port. It is not a 3.5 mm headphone plug, and the listing says a phone with only a 3.5 mm jack will not produce sound through this set. That makes connector checking more important than any audio claim.
This is not a swimming option: the supplied details do not state a waterproof rating. The wire and phone connection also make it less convenient than a wireless set for movement-heavy activities. I would consider Bordsek for a USB-C phone user who wants a wired microphone and inline controls, not for someone shopping specifically for a wireless headset for swimming.
KZ Gale is a wired in-ear model with an ear-hook design and a 3.5 mm plug. The hook is meant to help keep each earbud in place, while the low-profile in-ear format offers an alternative to bulky over-ear headphones. Its stated uses include gaming, music, and calls, so it is the most gaming-oriented pick in this group.
The published features include a built-in microphone and inline controls for music, calls, and a voice assistant. The maker describes the sound as bass-heavy, with emphasis on effects such as footsteps and explosions. That tuning may appeal to a player who wants impactful game audio, though it is a preference rather than a universal advantage. The listing also positions Gale for music, making it a plausible two-purpose wired set.
Its 3.5 mm connector is the key practical consideration. A device needs a compatible headphone jack, and the provided details do not establish USB-C or Lightning connectivity. The listing’s description mentions other technical audio details, but those do not change the basic buying decision: check the source device’s port before choosing it.
Gale is not presented as waterproof, so I would keep it out of the pool. The ear hooks and gaming focus may help with a secure fit during play, but they do not make it a swimming product. If you searched for the best gaming headphones for swimming, I would separate those needs: Gale is the gaming-focused option here, while Piegricdiat is the one whose listing specifically claims underwater use.
UNLEASY is a wired Lightning earbud set supplied as two pairs. It is designed for devices with a Lightning connector, and the listing identifies compatibility with iPhone models from the 7 through the 14 series. The two-pair package may be useful if you want a backup pair or need one set in more than one place.
The earbuds include a microphone and button controls, with the listing describing call handling and volume adjustment. Their wired design means no Bluetooth pairing or separate earbud charging is involved. That simplicity comes with a clear dependency: the device must have the right Lightning connection. This is not the USB-C choice for newer devices that lack Lightning.
UNLEASY describes the fit as lightweight and ergonomic, and the cable as durable TPE. Those details suggest a familiar wired option for work, study, or workouts, but the supplied information does not list a waterproof rating. I would not treat it as suitable for swimming, even though the product is described for exercise use.
The main trade-off is compatibility. Lightning is useful for a shopper with a matching device, but it limits who can use the set; it also cannot provide the wireless freedom of the sleep earbuds. In my view, the two-pack is most sensible for someone who specifically wants wired Lightning earbuds and values having a spare, rather than someone seeking a versatile all-device option.
How We Picked
We compared the published connection types, fit and control features, stated waterproof details, and intended uses.
No brand paid for placement.
FAQ
Piegricdiat is the only model here with an explicit IPX6 rating and a stated underwater-use claim. The other listings do not establish that they are suitable for underwater use.
Houlyn is described as a low-profile model with soft silicone tips intended for side sleepers. Its stated battery life is six hours, but fit and comfort can vary from person to person.
KZ Gale is the gaming-focused choice in this group, with an ear-hook design, microphone, inline controls, and a sound profile described as bass-heavy. It is wired and is not listed as waterproof.
For swimming, I recommend Piegricdiat because its published details specifically state IPX6 protection and underwater use; for sleeping, Houlyn is the more clearly documented alternative, with a low-profile design and six-hour stated battery life.
• rockpapa 3.5mm vs 100SEASHELL Long Cord TV
• headphones jbl noise cancelling
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.