The A'Ray True Wireless Auto Pair Earbuds with Active Noise Cancellation are the future of Bluetooth earbuds. As you see, there is no wire connecting the earbuds. The earbuds feature Bluetooth 5.0, auto-pairing, auto power-on, and active noise cancellation. Once the earbuds are removed from the case, they will power on and automatically sync to each other! No more hassle of trying to get the earbuds synchronized. The charging case also doubles as a powerbank for your earbuds and can be charged with the included Micro USB Cable. Once the battery of the case is charged, it will charge the earbuds (up to 4 times) from 0-100%. With over 4 hours of playback time at max volume on a single charge, these earbuds are a must for any traveler. The ergonomic design of the earbuds keeps them in place on the go. The earbuds have built-in "touch" music controls and dual microphones for hands-free operation. It takes 1.5 hours to charge the earbuds from 0-100%. The case can be charged in 1.5 hours.