From the KS page: "Flutter Basic ($20) Still under development, the Flutter basic is tiny and simple. You get all the features of Flutter in a circuit board wi

From the KS page: "Flutter Basic ($20) Still under development, the Flutter basic is tiny and simple. You get all the features of Flutter in a circuit board with an low-profile integrated antenna, rather than the large antenna shown in the video. Featuring micro USB for power and programming, components on both sides to reduce size, an LED, and a button, as well as plenty of digital and analog I/O."