Multitester tested for voltage. This is a voltage EQUIVALENT power adapter for Samsung cell phone booster and a few other models with an input: AC 120V (ordinary household wall plug outlet). Please ask questions to determine the correct adapter for your device. Photo is generic. Shape, size and color may be different than photo (brick-type) or could be wall-type. Special heavy wrapping is provided. S H in the contiguous USA is $5.(insured shipping). Please see other interesting items for JGrit. USPS DELIVERY TIME: As stated in the item listing, seller will drop-off your item to the USPS within 4 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 4 day drop-off time. Thankyou.