Up for sale is a used and tested Nakamichi genuine factory remote for the CA-7A preamp. This was tested and works fine on a CA-7A preamp we had in the shop and all the functions worked as they should. We also tested the functions for other components (CD, tuner and tape deck) with a light meter that showed it was sending a signal out. Not sure which other components this works with besides the CA-7A and well leave it up to you to do the research! Weve sold several dozen remotes with this level of testing and never had a problem so long as it was paired with the component it was designed for. Uses two AA batteries which are not included. Selling to USA only unless you use the eBay Global Shipping Program. Were part of The Sound Well and have been selling fine vintage home audio equipment in Berkeley since 1974 under mostly same ownership. Thanks for looking! Shipped by Post Office First Class. Sorry, no Local pick-up. Our packing is the best and we promise it will show up working as described. Nothing ever arrives from us damaged in transit. Note that E-Bay is now collecting sales tax for the home state of the buyer.