Verizon Wireless Samsung SCH-i760 Smartphone 3-In-1 USB Hot Sync Charging Cradle with Spare Battery Charger Slot 3-In-1 Features: Synchronize, Charge Phone and Charge Extra Battery. Synchronize & Charge phone with USB cable. Charge extra battery with AC adapter. The cradle holds your PDA at a comfortable reading angle and provides convenient access on desk. Portable design and convenient for travelers and business users. USB data cable & ac adapter include USB cable sync & charge phone ONLY, AC adapter charge 2nd battery ONLY.