I recently purchased the Qi Wireless base (CHOETECH T513) and a credit card size adapter that is about .5 mm thick. There are a bunch of different adapters available. I just chose one and it works fine. The CHOETECH T513 is a beautifully made product. Check out the reviews on Amazon. I use a folio case and the adapter fits fine between the iPhone and the case. So far it has worked great. It's nice to just set the iPhone on the base and walk away. I know I have a connection because a little blue LED lights up to confirm the connection. Purchased from Amazon a couple of weeks ago and so far no problems.