To suit iPhone 4S with Belkin protector (or similar). Includes built-in horn speaker. Suits cheapo iPhone cables from DealExtreme with short plug. Version 2 coming soon with adjustable volume control. NOTE: I stopped building version 2 when Stinkercad pulled the pin. I'm trying to work on it now, if I'm allowed.Be prepared to donate an iPhone cable to this project.Feed cable through back of dock. Plug cable into phone. Apply glue to exposed surfaces of plug. Fit phone and plug into dock and align vertically.. Allow glue to set completely before removing phone.