The pick-up element is embedded in the bridge. Works OK but I have now replaced it with the (much more expensive!) Realist which does have a warmer sound. The output wire should be soldered to either the original socket (supplied) which requires a hole in the tailpiece or to any proprietary inline jack socket. The copper tape included in the pics is for masking the socket to eliminate any interference. Works best into a high impedance input or with an inline pre-amp.