Features: Mini in size, fit in the hand of the adult or just put it into pocket. Light-weight and portable, easy to carry along. True bypass design, minimizes tone loss and get more control of your pedal. 3 adjustable knobs: level, low and high. Aluminum alloy housing, sturdy and durable. Durable jacks and foot switch. Comes with a piece of fastener tape to match your need better. Designed with on / off LED, instructs effects status. Powered by a 9V power adapter (not included).