Pedaltrain Volto Two 9 volt outputs with total output power capacity of 2000mA Cutting edge lithium-ion battery technology Efficient and super quiet alternative to traditional AC powered options Includes connecting cables and an AC charger with universal plug adapters Cutting edge lithium-ion battery technology Efficient and super quiet alternative to traditional AC powered options Includes connecting cables and an AC charger with universal plug adapters The Volto is a great choice for small pedal boards like the Pedaltrain-NANO and MINI