The Remix Auto Pair True Wireless Earbuds and Speaker combine True Wireless earbuds and a Bluetooth speaker. As you see, there is no wire connecting the earbuds. Making them true wireless earbuds. Once the earbuds are removed from the case they power on and automatically synch to each other The carrying case also doubles as a charging station for the earbuds and as a Bluetooth speaker. The case can charge the earbuds from 0 to 100% four times. With over 4 hours of talk time these earbuds are a great addition to any desktop. The ergonomic design of the earbuds keeps them in place on the go. Bluetooth working range is 10 meters (33 feet). Speaker Playback time: three hours. It takes two hours to charge the earbuds and speaker from 0 to 100%.