Info taken from the photojojo site.
Taking iPhoneography to the next level with an 8X telephoto view!
* Fixed telephoto iPhone lens attachment for an 8x closer view
* Like having a 500mm Sigma for your phone!
* Each lens comes with a case, mini tripod and cleaning cloth
* Compatible with iPhone 3/3GS and the Verizon/AT&T iPhone 4
* Great for concerts, nature photos, travel, sports, candid street shots …
* Mini ball-socket tripod twists to shoot from any angle: horizontal or vertical