MoKo Fitbit Alta/Ace Charger with Reset Button, Replacement USB Charging Cable Cradle Dock Cable Adapter with 10.8 Inch (275mm) Cable Length for Fitbit Alta/Ace SmartWatch Fitness Tracker, Black Replacement USB Charger Charging Cradle Dock Cable Adapter for Fitbit Alta / Ace Smart Fitness Tracker. Compact and lightweight, unique Clip Design, make your Smart Watch charging become more convenient. With a reset button on one end of the USB charger. Quickly click the reset button 3 times within 8 seconds, your Fitbit Alta / Ace Smart Fitness Tracker will get restarted.(This function is against a system crash) Power protection - Short circuit protection. Charge Time: Appr. 1.5 hours(Under shut down state)