Its driver unit is made by top-quality copper, the resolution is higher than ordinary drivers and with the vast sound field, and it could response great vocal at treble and bass, offering a kind of ease auditory sense. Gold-plated jack, could prevent oxidation efficiently, and with 32 core oxygen-free copper cable, the sound will not be distorted, giving you a better audio restoration. The cavity, which is made by resin, is environmental and durable. It has a longer lifespan. And the ergonomic designed ear tips, combined with CVC noise cancelling technology, not only efficiently reduce the background sound, but also offer a long-lasting comfortable wearing.

PREMIUM HD STEREO SOUND + RICH BASS: Surround yourself with Rich Crystal Clear High Fidelity Sound and Impressive Volume Capability. Take your workout to the next level with Superior Dynamic Acoustics delivering Deep Rich Bass and Crystal Clear Treble through cutting-edge components and the V-Shaped Sound Signature Profile. SECURE FIT - GREAT FOR SPORT: Specifically designed for sports enthusiasts, the HARNESS SC750 Bluetooth Headphones are perfect for Gym Workouts, Running, Jogging, Hiking, Biking, Yoga, CrossFit, etc... The ultra-lightweight ergonomic design delivers a comfortable and stable fit by securing behind your ears with soft flexible ear-hooks and resting comfortable in the ear canal with premium soft silicon ear tips. IPX7 WATERPROOF & SWEAT-PROOF. No need to worry about rain or sweat; Smash your goals and sweat your heart out with the IPX7 Waterproof rating. The IPX7 Waterproof coating provides a double layer of protection on the shell and internal components. This design makes them the absolute best wireless headphones for sports.