The Adafruit Feather series gives you lots of options for a small, portable, rechargeable microcontroller board. By picking a feather and stacking on a FeatherWing you can create advanced projects quickly. One popular combo is our Feather M4 or Feather RP2040 with a Prop-Maker FeatherWing on top to create animatronics or props that boot up instantly and can drive LEDs, and small speakers.