Item Type: Effect Pedal Power Supply: AC adapter 9V DC Center negative pole (not includ 9V power supply or battery) Size: Approx. 11.9 x 9.4 x 3.8cm / 4.7 x 3.7 x 1.5in Package List 1 x Effect Pedal 1 x Battery Cable 1 x Pedal Pad 1. Please pay attention to the power requirements of the product.2. The product requires the customer to purchase an external power supply before it can be powered on. 1Combine reverb and delay on one pedal to provide a variety of excellent tonal effects. 2Equipped with 6 knobs, you can easily and fully control the pedal effect and achieve a clear signal. 3You can adjust each effect by yourself without losing any of your guitar's natural tone. 4The pedal is made of highquality metal material, strong and wearresistant, reducing the loss caused by impact. 5This pedal is very suitable for beginner guitar players, and it can also be given to music lovers as a gift.