Boss FS 5L Latching Footswitch MIDI Controllers Fred Carpenter designed his heavy 7862 Fred Carpenter designed his heavy duty 1 4 inch output jack for those violin players who need a more secure attachment than the one armed bracket Its has a strong output signal and works surprisingly well with a ridiculously wide variety of instruments Use the Boss FS 5L footswitch with Boss Katana series amps as an additional on off controller for switching amp channels during live performance Connectors 1 4" phone type Power Supply (FS 5L only) Dry Batteries (R03 LR03(AAA) type) x 2 SIZE AND WEIGHT Width 3 13 16 inches (96 mm) Depth 3 9 16 inches (90 mm) Height 1 3 4 inches (43 mm) Weight 0 lbs