Features:Reverb guitar effect pedal with true bypass and LED indicator.With stereo inputs and outputs, you can use it as a guitar effect pedal or as a super compact outboard reverb for recording and mixers.3 reverb effects (Hall, Spring, Room), and the A or B toggle switch allows you to have 6 unique reverb sounds.With BLEND and TIME control knobs for you to get more different tones.Smart compact circuit design, full metal shell and heavy duty footswitch, very durable.Dual power supply choices (9V battery or DC 9V power adapter) for convenient usage.Specifications:Material: MetalInputs: 1 or 4″JackOutputs: 1 or 4″JackPower Supply: Alkaline battery (9V, 6LR61) or Carbon-zinc battery (9V, 6F22) or DC 9V 200mA adapter (positive outside and negative inside)(both are not included)Item Size: approx. 11.5 x 6 x 3.5cm or 4.5 x 2.4 x 1.4inItem Weight: approx. 290g or 10.2ozPackage Size: approx. 14 x 8.5 x 6.5cm or 5.5 x 3.3 x 2.6inPackage Weight: approx. 365g or 12.9ozNote:The power adapter and battery are not included.Please use the power adapter whose polarity is positive pole outside and negative pole inside. Otherwise, the product may not work properly.Package List:1 x Effect Pedal Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.