One ear Bluetooth headset. Bluetooth 5.0. 20 hour battery life. Using 5.0 devices can use data transfer speeds of up to 2 Mbps, which is double what Bluetooth 4.2 Supports. Devices can also communicate over distances of up to 800 feet (or 240 meters), which is four times the 200 feet (or 60 meters) allowed by Bluetooth 4.2.