This item is available exclusively through Gomadic Corp on Amazon. Gomadic products are custom designed by Gomadic engineers and are built using carefully selected high quality components. Only Gomadics products use our unique TipExchange technology which provides an inexpensive way to convert your charger to support a new mobile accessory. In addition; this product; like all Gomadic products; is backed by a lifetime warranty. WARNING: Please note that this product is sold only through Gomadic Corp on Amazon. Other Amazon sellers that may be advertising on this listing; are selling non-Gomadic imitations which are different than the item description and are not covered under Gomadics lifetime warranty.