RND Dock and 2nd Battery Charger for Samsung (Galaxy 4G Vibrant T959 Fascinate i500 Mesmerize and GT-i9000) Synchronize & Charge your Samsung Galaxy S Smart Phone with the USB cable. Charge an extra battery with the AC adapter. Power Protection Circuit included. The cradle holds your smart phone and provides convenient access on your desk or nightstand. RND Power Solutions Professional Retail Packaging Ships Fast! 100% satisfaction guaranteed!