Multitester tested for voltage. This is a voltage EQUIVALENT power adapter for X Rocker 51231 and PA 26704 (cn) and a few other models with an input: AC 120V (ordinary household wall plug outlet) and AC output: 10V. Please determine the correct adapter before purchase for your chair. Questions are encouraged. Photo is generic. Shape, size and color may be different than photo (brick-type) or could be wall-type. S H in the contiguous USA is $6.(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.