I have tried several other products and ended up returning them. Got two of these for me and my girlfriend's Sansas after seeing how well it worked with her daughter's ipod (which did not have a connection that could be used with the Sansa). Fully programmable for radio stations,easy to use. Has some difficulty in very crowded airwave locations like Boston, but a little fiddling soon found a frequency that worked. Has the strongest transmitter of any that I've tried - not perfect, but the best product of it's type that I've seen and a bargain compared to the prices charged in the big box stores.