Pack of 2x high quality capacitors. The brand may vary depending on vendor stock. Specifications are 1 farad, 2.7v.

Easy and cheap fix for red and yellow flashing control pad or disconnected garage door in MyQ app. 

You will need to be able to desolder the old capacitors and solder the new ones in. Once installed and connected the control pad may flash for a brief period of time while it resets. 

If you need to open and close the garage door in the meantime you can simply tap the two wires together that are going into the control pad.