LR Baggs Ibeam - Endpin Preamp - And Soundhole Volume ControlThe iBeams MIPA award winning design employs a matched pair of virtually weightless film sensors that flex with the soundboard to trace your guitars voice much like diaphragms in a stereo mic. A key advantage over typical bridge plate sensors is the iBeams cardioid like response pattern that inhibits feedback and string squeak while selectively admitting rich tone producing vibrations. Weighing less than 1 3 of an ounce, the pickup will not alter the