Input 100 - 240v AC. Output 600ma maximum regulated DC

Output voltage can be set to any of: 3v, 4.5v, 5v, 6v, 7.5, 9v, 12v

For indoor use only

Changeable plugs fit most audio appliances including standard USB socket 5v

Please read the back of the box “shown In the pictures” to make sure this appliance will suit your needs.