Features: Material: Silicone Amplifies: 13dB A must item for iPhone 4 user and collectors Smart design for amplifying the music and sound of your iPhone 4 No external power needed, increasing 13 decibels of volume Holds iPhone vertically and horizontally, functions well in hand-free mode Additional opening reserved hole at the bottom for charging Washable, dirt and scratch-resistance Compact design, lightweight and easy to carry Accessory only. Apple iPhone 4 is NOT includedPackage Contents: 1 x Neewer® Silicone Horn Stand Speaker for iPhone 4