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.Rugged and sharp design Mix and repeat controls Large, springy button 9V operation, battery (not included) or optional adapter Rubber base