As part of a limited time Lightning Deal, Amazon is offering the excellent 8BitDo Ultimate Wireless Controller for only $39.99 - a 20% discount - but it's selling out quickly. It's compatible with Nintendo Switch,

A new, $26 solderless mod kit from 8BitDo can transform your old GameCube controller into a wireless Bluetooth device that works with Nintendo Switch and Android. It’ll also work with the original GameCube,

BitDo announced it’s taking preorders for a new mod kit that lets you retrofit a wired GameCube controller with Hall effects joysticks and Bluetooth connectivity. The company is charging $25.98 for the kit,

For $26, the kit upgrades your GameCube pad so it can be used with the 8BitDo GC Retro Receiver, giving you a Bluetooth connection for wireless play. Because it uses a Bluetooth connection, you'll also be able to use the modified pad to play games on Switch and Android.