Mod Kits’ ThunderDrive is a do-it-yourself overdrive pedal with a current draw of 1.3 milliamps, allowing for long battery life. Mod Kits are designed to let novice and experienced musicians build their own amps and effects pedals. All have a pre-drilled enclosure, and all parts are included. The pedals operate on a 9-volt battery or a 9-volt adapter. Learn more at modkitsdiy.com.