Kenton Merge-4 Intelligent MIDI Merge guitar cord The probe circuit generates a

The probe circuit generates a small (one or two inches high) ﾓbubbleﾔ of RF energy at about a million cycles per second above the antenna plate

How about audio uses

An additional buffered output provides a clean signal for parallel processing

but without the annoying ticking sound that plagues all other tremolo pedals

Kenton Merge-4 Intelligent MIDI Merge guitar cord The probe circuit generates aMerges the data from up to four separate MIDI sources (e. g. Master keyboards or controllers) into a single MIDI data stream which appears at both of the MIDI out sockets. 4 opto isolated MIDI Ins and 2 MIDI Outs. 4 x MIDI IN 2 x MIDI OUT (both carry the same MIDI data Merges all data DC power input jack 2. 1mm (centre +ve) Power indicator light 9V unregulated power supply included Housed in a metal box so it can withstand the knocks