New Bluetooth 5.3 Adapter: This Bluetooth dongle makes use of the most recent Bluetooth 5.3 BR+EDR technology, which significantly increases connection stability, data transfer speed, and lowers the likelihood of signal disruption and power consumption. Increased Speed and Range: Enjoy twice as fast data transfer rates as Bluetooth 4.0, with up to 2 Mbps available, and an extended transmission range of up to 66 feet (20 meters) in open areas. Note: radio interference and physical barriers have an impact on the effective range. Five or more devices You can listen to high-quality music while using the keyboard or mouse thanks to the UGREEN Bluetooth dongle for PC, which allows up to five devices to be connected simultaneously without interfering with one another.