<div style="font-size:16px;">The wireless earbuds with LED display make it obvious to show the battery power of the case and earbuds. The remaining power in percentage on the screen is displayed on the left of the bluetooth earbuds. The right side assigns to the charging process of each bud, there are power consumption indicators separated by 4 grids in total, each grid represents 25% of the bud's power. With advanced bluetooth 5.3 earphone technology, take out the earbuds, the bluetooth earbuds can automatically connect to the previously paired device. When you put it back, the bluetooth earbuds will turn off and are recharging. Equipped with soft, secure-fit ear hooks for a lightweight, comfortable and stable design, and different sizes of ear tips to choose from, the sports earbuds stay comfortably firm in place and won't fall out. IP7 design for sweat and water resistance, so you can take your workouts to the next level. Our Bluetooth earbuds make the bass more powerful and the mids full and textured. Improve high frequency compliance and restore true sound quality, enjoy conversations and music. The in-ear wireless headphones have a complete control set, easy-to-press buttons to control settings like play/pause, track skip, answer/hang up call. Reasonably simple to use while on the go. The wireless headphones pair with iOS, Android devices and most Bluetooth-enabled devices (such as laptops, tablets, or Windows desktops via Bluetooth).