1. UNIQUE QUICK CHARGE BOX:ultra-lightweight and portable charging case of Bluetooth earphones with large capacity Lithium batteries, the wireless earbuds and let you enjoy 6 hours continuous music or talking time after every single charge.  Easy to carry, no worry about the wireless earphones power off. 2.WEARING COMFORTABLE:Wireless earbuds are designed to comfortably fit in your ear, in-ear design. New in ear design, snug and secure, comfortable to wear, will not cause ear swelling. The super musical outputs are light and comfortable to wear for long hours with no pain. 3.Binaural Call and Hifi Sound Quality: The Call Voice and Music Will be Output from Both Ears. You can Enjoy a Really Wireless Music World and Hifi Stereo Call Sound. Adopt Bluetooth 5. 0 HD Rendering Technology that Produce Incredible Sound Quality with Deep Bass and Crystal Crisp Treble. Built in High Quality Noise Reduction Technology Chip, Can Block out lots of Surrounding Noises During Sports, Running, Jogging , Hiking etc. 4.MULTIFUNCTION BUTTON: The wireless bluetooth headphones button to control power on/off, answer/hang up call, play/pause music/video etc. Easy for you life. 5.IPX4 Sweat-proof Earphones: IPX4 Water-resistant Nano-coating efficiently protects sport headphones from sweat and ensure more guaranteed life span. Light weight earbuds are perfect for running, jogging, hiking, yoga, exercises, gym, fitness, travelling and etc.