The units did not work for me as I had hoped. After a partial refund and me spending about $75 of my money to purchase the cords I was trying to make the units be to my satisfaction. After all this the units were still a joke. Incredible rip off. Called Blaux to return units and receive a full refund. I was told that I would have to pay the return shipping which, I guess, would be expensive. I was beaten. I found that my satisfaction was truly not guaranteed. I gave up. I threw the units in the trash where I felt they belonged. One good thing though...I do now have four nice adaptor cords that I may be able to be used elsewhere. I would never recommend these units to anyone. Dddddoto anyone. eto anyone. u in User's recommendation: Avoid completely.