LYPERTEK SoundFree S30 Open-Ear Bone Conduction Headphones

LYPERTEK SoundFree S30 headphones combine an open-ear bone-conduction design with claimed waterproofing and built-in 32GB MP3 storage. The MP3 mode is intended for underwater listening, where the listing says Bluetooth signals cannot work, while Bluetooth supports wireless listening above water.

At a glance

The listing claims 32GB of MP3 storage for phone-free playback while swimming, when it says Bluetooth signals cannot work underwater.
Open-ear bone conduction is aimed at sports use without covering the ears.
The feature description claims IP68 protection, a TÜV Rheinland 10m certification, a 23g frame, a rear safety LED and magnetic charging.
Bluetooth 6.0 and three EQ modes are listed for everyday wireless listening. The listing also claims dual-mic environmental noise cancellation for calls.

Price

$34.99Save 50%

Reference price: ~~$69.99~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

On-device MP3 storage offers a stated option for music during swimming without relying on underwater Bluetooth.
Open-ear design and the listed titanium memory-wire frame target a secure fit for swimming, running, cycling and gym workouts.
The listing claims magnetic charging and a rear safety LED for training between sessions and in low light.

Cons

Bluetooth is not the stated listening method underwater, so swimmers would need to use the MP3 playback mode rather than rely on a phone connection.

Technical specifications

16 specifications

Identity
Brand	LYPERTEK
Model	S30

Connectivity and controls
Wireless connection listed	Bluetooth
Bluetooth version	6
Bluetooth range	10 meters
Control methods listed	Push Button, Touch
Headphone jack	No Jack

Audio and features
Driver type	Bone Conduction Driver
Impedance	50 ohm
Noise control listed	Environmental Noise Cancellation
Built-in microphone	Lightweight, Microphone Included

Dimensions and installation
Form factor	Open Ear
Weight listed	0.22 kg

Materials and protection
Water resistance listed	Waterproof
Enclosure material	Plastic, Silicone, Titanium memory wire

Use and compatibility
Compatible devices	Smartphones, Laptops, Tablets, Smart Speakers, MP3 Players

What to know before buying

Listing details to confirm

The detail fields list weight as 0.22 kg, while the feature copy calls the frame 23g. Waterproof protection is also described broadly in the detail fields but as IP68 and TÜV Rheinland 10m certification in feature copy. Treat the precise weight and protection claims as inconsistent within the listing, and confirm the specifications relevant to your use before buying. The Bluetooth listing says version 6 while promotional copy says Bluetooth 6.0.

What’s in the box

Included

Bone conduction headphones
Cable
User manual

Who is it for?

A good fit for

Swimmers wanting onboard music storage for listening without a phone connection underwater.
Runners, cyclists and gym users looking for open-ear bone-conduction headphones with Bluetooth playback.
Buyers who want a listed microphone and button or touch controls in a sports-oriented headset.

Less suited to

Listeners who need Bluetooth streaming to work underwater.
Buyers who require a clearly consistent weight or water-protection specification without checking the listing details.

LYPERTEK SoundFree S30 Open-Ear Bone Conduction Headphones · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.2 / 5 · 43 ratings

5 stars56%56%
4 stars22%22%
3 stars14%14%
2 stars0%0%
1 star8%8%

The supplied evidence contains aggregate ratings but no customer-comment summary, so it does not establish what buyers liked or disliked. The ratings are mixed rather than uniformly positive, and a small rating sample offers limited insight into fit, sound or underwater performance. Consider the stated MP3 mode and the listing's inconsistent weight and water-protection details when deciding whether the product suits your use.

Frequently asked questions

Can the SoundFree S30 stream Bluetooth audio underwater?

The listing says Bluetooth signals cannot work underwater and describes the built-in MP3 player as the phone-free swimming option.

How much onboard music storage is listed?

The feature copy claims 32GB MP3 storage and says it can hold 8,000+ songs. Those are listing claims rather than independently verified capacity or song-count measurements.

What water protection is claimed?

The details list the headphones as waterproof, while feature copy claims IP68 protection and TÜV Rheinland 10m certification. The listing does not present these descriptions consistently, so confirm the exact claim before relying on it.

What comes in the box?

The stated contents list includes the headphones, a cable and a user manual.