Place the earbuds in the charging case and close the lid. It takes approximately 2 hours to fully charge the earbuds. When you open the lid, the LEDs on the earbuds will flash red, yellow, or green to indicate the battery status of the earbuds. The LED on the back of the charging case indicates the battery status of the charging case. When the earbuds are at low battery, 15 minutes of charge time will give a minimum of 45 minutes of battery. This fast charge option requires that the charging case be fully charged. You can check the current battery status of the earbuds and charging case in the Jabra Sound+ app.