The World"s Smallest Bluetooth Controller for Smartphones and other Devices! Sized to fit right in your pocket or hang off your keychain - the impulse Controller"s "Swiss Army Knife" design provides unparalleled control and flexibility. The impulse Controller functions as a key finder, game/media controller, remote selfie snapper, presentation remote, and even Apple TV remote! Why buy 5 cumbersome devices to do these tasks - the impulse handles them all.