Check the listing for details. Geniune OEM Authentic Bluetooth Dongle Wireless Sync USB for Fitbit Charge HR.... Color: Black, Condition: Used. Listed at 7.99 USD. Geniune OEM Authentic Bluetooth Dongle Wireless Sync USB for Fitbit Charge HR... Product Overview Comes in bulk packaging Features Plugs into USB port Compatible with all fitbit activity trackers Ideal for second laptop or computer Details Package Dimensions: 2.8 x 2.4 x 0.4 inches Item Weight: 0.2 ounces Shipping Weight: 0.2 ounces Item model number: FB150 Quality Products Have peace of mind knowing that your order will arrive original factory sealed packaging. That means that you'll have the full force of the manufacturer's warranty to protect your purchase. Fast and Free Shipping You're already purchasing the item. Why pay additional for shipping, especially slow shipping? We get your order shipped out and delivered to your doorstep as quickly as possible. Commitment We are committed to making sure that you leave this transaction satisfied. That means having access to real people that get your questions and concerns answered quickly. Give us a shot and we will make sure that you will look to us again!