for Fitbit Wireless Dongle Replacement USB Wireless Sync Dongle for Fitbit Charge 3/ Ionic/Flex 2/ Charge 2/ Alta HR/Blaze/Surge/Charge HR/Flex/One Activity Heart Rate Monitor Fitness Trackers 1pc Ecsem&reg; Fitbit Sync Dongle, Replacement USB Wireless Sync Dongle for Fitbit Charge 3/ Ionic/ Alta HR/ Charge 2 / Alta/ Blaze/ Surge/ Charge HR/ Flex/ Charge/ Force/ One Activity Monitor Trackers This ECSEM Fitbit Wireless Dongle compatible with Fitbit activity trackers: Fitbit Alta/ Blaze/ Force / Charge / Charge HR / Surge / Flex / Force / One Plug&Play: Plugs into USB port. Ideal for laptop or computer. Easy to carry; Notice: Please keep the distance within 1 meter between Fitbit Tracker and Dongle Package include: 1pc Replacement Wireless Sync Dongle for Fitbit Trackers Please NOTE: this fitbit wireless sync dongle replacement need win7 or lower computers. Order with confidence with a 1 year warranty for replacement or full refund without return the item.