This power supply uses a 9V battery. The output terminals and batteries are isolated from each other in a one-to-one relationship, eliminating the need for worry about unwanted noise. In addition to three power input ports, it also features a battery level indicator so you can check the remaining battery charge. *A single battery does not output from all three ports; a separate battery is required for each output. Batteries and DC cables are not included, so please prepare your own. (Please note that since this product is made from the housing, there may be some slight color mixing or the finish may be rough.) Switch Audio Battery Supply Plus (Model with Battery Checker) Features This power supply uses a 9V battery. The output terminals and batteries are isolated from each other in a one-to-one relationship, eliminating the need for worry about unwanted noise. In addition to three power input ports, it also features a battery level indicator so you can check the remaining battery charge. *A single battery does not output from all three ports; a separate battery is required for each output. Batteries and DC cables are not included, so please prepare your own. (Please note that since the product is made from the housing, there may be slight inclusion of other colors or a rough finish.) Staff Comment: This battery-powered power supply is perfect for those who prefer battery-powered over a power supply when incorporating distortion pedals, especially fuzz pedals, into their pedalboards, but find it a pain to open the back cover every time they need to change batteries. This model comes with a battery checker. For more information about this product, please call 0570-020-025 or use our "Inquiry Form." ■Management Code: 0151000671742 Category: Effects, Electric Guitar Effects, Fuzz, Musical Instruments, Crafts, Collectibles, Musical Instruments, Equipment, Guitars, Guitar Effects JAN/ISBN Code: 4589408521080 Product Code: mt0165417