Multitester tested for voltage. This is a voltage EQUIVALENT version adapter for JBL voltage regulator, power supply, powersupply, inverter, adaptor for AC input 120V and DC output: 24V 2.3A (24VDC 2300mA). Amperage can be higher, but never lower. Round barrel connector with a hollow POSITIVE center. Please check your device for correct electrical compatibility. Questions are encouraged. Photo is generic. Adapter size, color or shape may differ from photo. May be brick-type or wall-type. Special heavy wrapping is provided to protect the prongs. S H in the contiguous USA is $6.(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.