Original Fitbit FB150 Wireless Sync Dongle for Fitbit Flex Zip One Charge HR | eBay
NEW Mini USB Bluetooth Adapter Wireless Sync Data USB Dongle Bluetooth Receiver for Fitbit Versa Alta Blaze Charge Charge HR|Smart Accessories| - AliExpress
Fashion Wireless Bluetooth Dongle USB Sync for Fitbit One/Flex Zip/Force/Charge/HR/Surge | Wish