Unmatched Comfort Headphones: Over-ear earcups made from the softest memory protein foam provide you with all-day comfort. The adjustable headband and flexible ear cups easily fit any head shape without putting pressure on the ears. The foldable and lightweight design weighing only 0.44 lbs makes it the perfect choice for college students traveling, exercising and everyday use Hi-Fi Stereo Headphones: Upgraded bluetooth headphones with dual 40mm drivers and noise-isolating technology make your favorite music look like its in a concert hall, as if you were watching it live. High-quality sound reproduction for listeners, audiophiles and home audio enthusiasts Broad Compatibility: Pairs with over-ear headphones with a microphone. The wireless headphones are compatible with all devices that support Bluetooth or a 3.5mm plug cable. With the built-in microphone, you can easily make hands-free calls or meet face-to-face while working from home Seamless Wireless Connection: The updated Bluetooth version V5.1 ensures an ultra-fast and virtually unbreakable connection up to 33 feet (10 meters). The rechargeable 500mAh battery quickly charges in 2.5 hours. After 55 hours of playback, you can switch your KVIDIO cordless headphones from wireless to wired mode to enjoy music without interruption. Dont worry about power outages on long trips