Portable external power for guitar pedals and other musical accessories that require 9Vdc power. A high capacity of 10,000mAh with 2 x 9V DC5521 jack outputs (centre-negative), with 2 short connection leads supplied, and a separate USB type A output for charging standard 5V USB appliances.The power bank re-charges through a micro USB connection (charge lead included) and a single button initiates power to the 9V outputs or switches on or off the miniature LED light to help make connections on dark stages. Provides freedom from fixed or noisy power supplies with multiple pedal setups for stage and street performers.