Tempo Elf by Mental TomAnimate objects with the worlds smallest remote tread reel! Tempo Elf has extensively evaluated different versions. After more than a year of continuous experimentation, the size of the motor has been successfully reduced to a minimum. The entire unit now fits inside a standard bottle cap, providing a compact and portable design for discreet performances. With Tempo Elf's single thread motorized ITR system, you can effortlessly execute a variety of