Well in my case, it works in regular portable or home radios which you can plug into the wall, I had bought it for the car stereo because that is they way I would listen to my ipod or cell phone, but it appears that this cassette doesn't work on my car's cassette player. So it is not the cassette's problem it is my car that doesn't take it. I do recommend this product because it actually works but it may vary on the players you use it on. Good luck.
I wanted a solution to be able to fast charge at least 2 devices at once in the car. This gives the option of 3 and has a enough overall amps to cover all 3 devices, even if they are all 2.4amp fast charge capable. Nice blue glow around inputs too!
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