【Long battery life】: Bluetooth earphones can last for over 5 hours of playback on a single charge, and a total of 66 hours with the charging case. The extra large capacity 1200mah charging case can be used to charge the earbuds 13 times and can also be used as a back-up rechargeable battery to charge your phone. The charging case can be fully charged in just 1.5 hours via USB-C cable, enjoy fast charging! 【One-step pairing of wireless earbuds】:Just take the 2 earbuds out of the charging case and they will be connected automatically, then you can easily access your phone’s Bluetooth settings to pair the earbuds in just one step. Wireless earbuds are compatible with IOS, Android. 【Bluetooth Earbuds 5.3】: Wireless earbuds with advanced Bluetooth 5.3 technology, making Bluetooth ear buds faster and more stable transmission, lower power consumption. HIFI sound quality, taking into account the rich vocal detail as well as solid bass, tight acoustic measurement system, true to restore the beauty of sound 【Comfortable Bluetooth earbuds】:The wireless headphones are ergonomically designed to fit closely to the ear and are comfortable to wear. Smart touch control, easy and simple to operate, one click to play/pause music and other functions, they also come with 3 sizes of silicone earbuds, you can choose the size that fits your ear canal and enjoy your music. 【Dual Connection】: The true wireless earbuds host both the left and right ears, so you can pick up either one and listen to it, with simultaneous signal transmission. The power of dual connectivity gives you the option to enjoy music or make phone calls seamlessly with one or both earbuds. Battery life stays in sync with you as you can keep one earbud charged while using the other.