Multitester tested for voltage. Power supply voltage EQUIVALENT to Digitech adapter for many instrument power needs with AC input 120V and AC output: 9VAC and 780mA. (aka: 9volt AC 0.78A). Amperage can be higher, but never lower. Please check your device for electrical requirements. Photo is generic. Shape, size or color may differ from photo. Round barrel connector with a hollow center. Special heavy wrapping is provided to protect the prongs. S H in the contiguous USA is $7.(insured shipping). Please see other interesting items by JGrit USPS DELIVERY TIME: As stated in the item listing, seller will drop-off your item to the USPS within 5 days of receiving cleared payment. How long it takes to deliver to your door is strictly within USPS control and not within the control of seller. Please leave 5 stars for seller 5 day drop-off time.