The ifidelity Auto Pair True Wireless Bluetooth Earbuds are the future of Bluetooth audio. As you see, there is no wire connecting the earbuds. Once the earbuds are removed from the charging case they’ll be paired together automatically. Making these earbuds user friendly for any type of consumer. With 5 hrs of playback time at max volume, you won’t have to worry about recharging constantly. Once the earbuds are placed back into the charging case, they’ll begin to recharge. The case will recharge the earbuds 4x from 0-100% capacity. To charge the case, place it on a wireless charging pad or charge with the provided micro USB cable. The hook design on the earbuds keep them secure during your commute or daily workout. With an IPX4 sweat resist rating you won’t have to worry about damaging your earbuds during your workout. The earbuds feature built in music controls, one touch Siri/Google Assistant activation, and a microphone for hands free operation. Bluetooth Version 5.0.