Underneath of the base the wire that comes thru is for your use to attach it to what ever device you want for sound and of course you would have to get yourself the proper connectors. 43 tall and weighs approx. I build my units to be as original as possible , as mentioned above onle replacing broken, missing or non working parts! The item "Vintage Koropp Drive In Movie Speaker Set / Red Glow Top Junction Box" is in sale since Monday, June 14, 2021. This item is in the category "Entertainment Memorabilia\Theater Memorabilia\Other Theater Memorabilia".The seller is "louigecf" and is located in Philadelphia, Pennsylvania. This item can be shipped worldwide.