Amzer AMZ95627 Piano Charging Dock with Audio Out for Samsung Galaxy S IV S4 S 4 GT-I9500 - Retail Packaging - Black Audio Out directly from this Dock through Micro USB. Supports DOCK MODE so you can access the Samsung Galaxy S4 dock menu while Charging or Sync. This Charging Dock features technology which allows your Samsung Galaxy S4 to charge very quickly. Charge or Sync your Samsung Galaxy S4 on this Charging Dock in conjunction with Amzer Silicone, TPU & Shellster Case. Includes USB 2.0 Micro USB cable.