Multitester tested for voltage. This is a voltage EQUIVALENT wall mount version with all the electrical requirements of the YAMAHA voltage regulator, power supply, powersupply, inverter, adaptor PA-1 and PA-1B with the following specs: AC input 120V and DC output: 12VDC 300mA (aka: 12 volt DC 0.3 amps). Amperage can be higher, but never lower. Round barrel connecter with a hollow POSITIVE center. Please determine compatibility to your device before looking. Shape, size or color may differ from product photo. Special heavy wrapping is provided to protect the prongs. S&H in the contiguous USA is $6.(insured shipping). Please see other interesting products 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.