The stripped down FAB Echo Guitar Effects Pedal is made with Danelectro's famous fun attitude. The stripped-down FAB Echo pedal has everything you need and nothing you don't. Mix and repeat knobs give you plenty of signal control while a big button lets you punch it in and out. The FAB Echo effect's Cool retro-futuristic design is tough and small with nonskid rubber base. Runs on 9V battery or optional 9V DC adapter.