-silicone horn stand For iPhone 4 and 4S -boost sound -dock and stand for iphone on desk silicone horn stand For iPhone 4 and 4S 1-Lauderspecker for iPhone 4 4S, boost sound level by 18dBA2-Dock and stand, allow charge connection while playing music or video.3-Allow handsfree function, convenient to use on desk;4-100% made of silicone, no glue / no battery, eco-friendly, amplify sound by ...