EEEKit Charging Solution Kit for Fitbit Charge HR Wireless Activity Wristband, 2 Packs USB Replacement Charger Charging Cables for Fitbit Charge HR This charing solution kit is for Fitbit Charge HR smart band Wristband. It is portable for you to charge for your Fitbit Charge HR. Voltage Regulator (PTC) Inside: Prevent your Fitbit Charge HR from being damaged by overcurrent when Connected to USB Power Source on PC, Mac, Laptop or Notebook. Extra Replacement Charging Cable to Give Your Fitbit Charge HR Wristband a Boost in the Office,at Home, in Car or in Travels.NOTE: Only Work for The Fitbit Charge HR, NOT for any other models. Buy from sellers EEEKit or Amazon to ensure authenticity and better service.