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LYPERTEK SOUNDFREE S40 – Open-Ear True Wireless Earbuds with LDX Audio, App Control, and ENC Calls

LYPERTEK SOUNDFREE S40 – Open-Ear True Wireless Earbuds with LDX Audio, App Control, and ENC Calls

Regular price $69.90 USD
Regular price Sale price $69.90 USD
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  • LDX Audio Mode
  • App Supported
  • Touch Control
  • Light Weight
  • 2Mic ENC clear call
  • 12 hrs & up to 40 hrs
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Lypertek Soundfree S40 with charging case and smartphone displaying LYPERTEK S40 app on a black background

Exclusive 18×11mm driver meets the LYPERTEK App for total control, EQ tuning, and LDX clarity.

Your Sound, Mastered.

The SOUNDFREE S40 features an exclusive 18×11mm dynamic driver for spacious, natural, and immersive sound.

Take full control via the LYPERTEK App—fine-tune EQ, customize touch controls, and activate LDX (Lypertek Definition Expander) Audio Mode for an instant boost in detail, depth, and clarity that perfectly adapts to your personal taste.

Man wears lypertek soundfree s40, sitting at a desk using a computer with colleagues in the background

Open-Ear Design. Ultra-Light Fit.

Designed for Awareness and Comfort

Enjoy the world around you while listening to your favorite music. The SOUNDFREE S40’s open-ear design provides natural environmental awareness without blocking your surroundings.

Each earbud weighs only 8.3 grams, ensuring a secure, all-day fit without pressure or fatigue — perfect for commutes, and daily wear.

Lypertek Soundfree S40 Black wireless earbud with blue accents on a dark background, featuring text about dual-mic ENC technology.

2-Mic ENC for Crystal-Clear Communication

Clear Calls Anywhere

The SOUNDFREE S40 features a dual-microphone ENC system that reduces background noise and enhances voice pickup, ensuring every call stays clear and natural — even in noisy environments. Stay connected and confident wherever you go.

Lypertek soundfree s40's multipoint connection system with devices and text on a black background

Multipoint Connection – Connect Two Devices, Switch Seamlessly.

Seamless Device Switching

Stay connected to both work and play effortlessly. Bluetooth Multipoint lets the SOUNDFREE S40 connect to two devices simultaneously, so you can seamlessly take a call from your phone while listening on your laptop - no manual re-pairing needed.

Use the LYPERTEK App to view and manage connections, keeping your sound perfectly in sync with your lifestyle.

Woman wearing soundfree S40 outdoors with text about playtime and water resistance.

Long Battery Life and IP55 Durability

Ready for Every Day

Built to move with you, the SOUNDFREE S40 delivers up to 12 hours of continuous playback on a single charge & total 40 hours with charging case. With IP55-rated protection, it resists dust, sweat, and rain—making it ideal for both daily use and outdoor activity.

Lypertek soundfree s40 Black wireless earbud on a white background

Easy Commands at Your Fingertips

Intuitive Touch Control

Seamlessly manage music, calls, and voice assistants with simple touch controls. Designed for convenience and precision, the SOUNDFREE S40 keeps you in full control without needing to reach for your phone.

LYPERTEK Soundfree S40 Black wireless earbuds with charging case on a white background, featuring the Lypertek brand.

General Information

Specification

Bluetooth Version: Bluetooth 5.4
Connection Distance: 10≥m
Frequency Response:10Hz-20KHz
Sensitivity: 98dB
Driver Unit:  Exclusive 18x11mm DD
Waterproof Rating: IP55
Battery Capacity: 85mAh earbuds / 400 mAh Charging Case
Continuous Playback Time: 12 / 40 hours*
Charging Time: 1.5 hours

*Actual battery life may vary depending on usage and environment.

What's Inside?

  • SOUNDFREE S40 OWS
  • Charging case
  • USB Type-C cable
  • Carrying bag
  • Quick start manual
LYPERTEK SOUNDFREE S40 black open-ear wireless earbuds

LYPERTEK SOUNDFREE S40 – Open-Ear True Wireless Earbuds with LDX Audio, App Control, and ENC Calls

$69.90