HIGH FIDELITY STEREO HEADPHONES: KVIDIO bluetooth headphones with dual 40mm drivers, offers an almost concert hall-like feel to your favorite music as close as you're watching it live. Provide high-quality reproduction of sound for listeners, audiophiles, and home audio enthusiasts UNMATCHED COMFORTABLE HEADPHONES: Over ear earmuff made by softest memory-protein foam gives you all day comfort. Adjustable headband and flexible earmuffs can easily fit any head shape without putting pressure on the ear. Foldable and ONLY 0.44lbs Lightweight design makes it the best choice for Travel, Workout and Every day use by College Students WIDE COMPATIBILITY: Simply press multi-function button 2s and the over ear headphones with mic will be in ready to pair. KVIDIO wireless headsets are compatible with all devices that support Bluetooth or 3.5 mm plug cables. With the built-in microphone, you can easily make hands-free calls or facetime meetings while working at home SEAMLESS WIRELESS CONNECTION: Updated Bluetooth version V5.4 ensures an ultra fast and virtually unbreakable connection up to 33 feet (10 meters). Rechargeable 500mAh battery can be quick charged within 2.5 hours. After 55 hours of playtime, you can switch KVIDIO Cordless Headset from wireless to wired mode and enjoy your music NON-STOP. No worry for power shortage problem during long trip WARRANTY AND SURPPORT: Package include a Foldable Deep Bass Headphone, 3.5mm backup audio cable, USB charging cable and User Manual. 30 days free return and 18 months warranty is our guarantee, please feel free to contact us if you have any inquires during using