USB Bluetooth Wireless Sync Dongle for Fitbit Alta Fitbit Blaze Fitbit Charge 100% Brand New And High Quality! Compatible with Fitbit Alta/ Blaze/ Charge / Charge HR / Surge / Flex / Force / One Activity Monitor Trackers Plug&Play: Plugs into USB port. Ideal for laptop or computer. Easy to carry. Notice: Please keep the distance within 1meter between Fitbit Tracker and Dongle. Package: 1 X USB Dongle for Fitbit Trackers.