The Solekick True Wireless Auto Pair Earbuds features include Bluetooth 5.0, Auto Pairing, and Auto Power-On. Once the charging case is opened, the earbuds power on and automatically sync to each other! The case also doubles as a power bank for your earbuds and can be charged with the included USB-A-to-Type-C cable. On the center of the case is an LED display screen that indicates the battery percentage of the case and earbuds. Once the 400mAh battery of the case is charged, it will charge the earbuds 3x from 0-100%. With over 4hrs of playback time at max volume on a single charge, these earbuds are a must-have for anyone needing earbuds for continuous use throughout the day. The ergonomic design of the earbuds and silicone tips keeps them in place on the go. The earbuds have built-in music controls and dual microphones for hands-free operation. It takes 1.5hrs to charge the earbuds from 0-100%. The case can be charged in under 2hrs.