ROSESELSA OpenFree Open Ear Wireless Earbuds LDAC LDHC HiFi Sound Bluetooth 5.4 Earphones 52H Battery LC3 Game Mode 20ms

Independent Audio Module with Cadence HIFI DSP Chip, along with the new composite Planck dynamic driver, OpenFree achieves ultra-low distortion, ultra-wide sound field, and excellent dynamic range. With an 86% improvement in resolution, it delivers silky & warm human vocal, immersive & surging bass, and delicate & melodious treble.

The equal-loudness contour tuning technology that is more in line with auditory characteristics, combined with LDAC/LHDC high resolution codecs, these wireless earbuds faithfully reproduct audio details. The air audio compensation algorithms provide bass enhancement, overcoming the low airtightness of open earphones. 360° panoramic spatial sound effect provides a stereo experience with excellent spaciousness and immersion.

The 3D ergonomic design, in combination with the Acoustic Beamforming 3.0, enables all-day comfortable and stable wearing. Meanwhile, it isolates the front and back of the diaphragm into independent chambers and outputs sound through the directional transmission panel, making the audio to form within a specific angle. This greatly reduces physical sound leakage by 99% for privacy protection and no more embarrassment.

The earphone stem is made of soft antibacterial silicone, combining safety and comfort. It does not affect wearing glasses; These open ear earbuds is equipped with the OpenHealth hearing protection algorithm to effectively avoid hearing fatigue and ensure a continuous comfortable experience.

With a battery life of 52 hours, OpenFree is sufficient to support 10 full marathons. No fear of long journeys and goodbye to battery anxiety. IPX4 water resistant is suitable for more than 95% of daily life scenarios. The AI call noise reduction algorithm equips OpenFree with crystal clear call experience like face to face.

These wireless earbuds support the next-generation Bluetooth protocol, which has an astonishingly low latency of 20ms, comparable to wired headphones. Whether it's FPS or rhythm, the extremely sensitive response can help you dominate games.

OPENFREE supports dual-device connectivity with Bluetooth 5.4, allowing seamlessly switch between devices without taking it off whether for office, workout or leisure. Experience a digital lifestyle anytime, anywhere; Concise & ads-free APP supports customized touch controls. You can freely control the earbuds without logging in.