Features:<br />Acoustically amplifies speaker of your phone without power requirements or cables， as its internal engineered waveguide requires no power.<br />Just slip your phone into the silicone dock gasket， and you can enjoy the perfect audio from facetime， videos， conference calls， games， alarm clock and music without headphones.<br />Adjustable stand/holder angles can hold your phone in both landscape and portrait mode.<br />Reserved bottom charging port to be used as a charging or sync dock.<br />Transparent polycarbonate body lets you appreciate the waveguide&#39;s graceful curves and inside which do all the work and its silicone dock gasket won&#39;t scratch the phone.<br />Environmental friendly， compact， portable and fashionable.<br /><br />Specifications:<br />Application: For iPhone 4/4S<br />Function: Amplify audio about 10 decibels<br />Color: Transparent + white<br />Material: Silicone + Polycarbonate<br />Item size: 11.5 * 12.2 * 2.8cm / 4.53 * 4.8 * 1.1in<br />Item weight: 234g / 8.25oz<br /><br />Package includes:<br />1 * Acoustical amplifier<br><img src="//img.tomtop.com/product/xy/2000/2000/p/tt/p/a/pa1482-8-f1c2.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/tt/p/a/pa1482-1-f1c2.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/tt/p/a/pa1482-4-f1c2.jpg" /><br>$$<img src="//agdetail.image-gmkt.com/810/290/829290810/img/img.tomtop.com/product/xy/2000/2000/p/tt/p/a/pa1482-3-f1c2.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/tt/p/a/pa1482-10-f1c2.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/tt/p/a/pa1482-9-f1c2.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/tt/p/a/pa1482-2-f1c2.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/tt/p/a/pa1482-7-f1c2.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/tt/p/a/pa1482-5-f1c2.jpg" /><br>