The iPhone Horn Stand acoustically amplifies the sound from the built-in speaker of your iPhone by more than double. Without requiring any external power source or batteries, you and your friends can enjoy music and videos 13 decibels louder.
The silicone iPhone Horn Stand can rest horizontally or vertically and features a slot for access to the dock connector. Available in multiple colors. Designed for the iPhone 4 and compatible with the iPhone 3G/3GS.