The SmoothTalker SEM26THF antenna is designed to boost your cellular signal when in a flat environment where the cellular tower is on the horizon. This antenna works best when it is used on a metal surface like a roof of a vehicle. The best signal range is achieved when you are in the flat desert, plains or oceans and has a radiation pattern aimed more acutely at the horizon. This antenna works with any mobile cellular device with a built in antenna jack or with a cell phone holder featuring a built in antenna pickup.
