KMA Audio Machines Dual Loop Switcher; Loop Switcher for Effects; Easy to use; Switch or combine two serial loops, in Mono or Stereo/Dual Mono; Active Silent Soft Switching, heavily reduces mechanical noise and pops; LED: Effect On; Footswitches: Effect Bypass; Connections: Input (1/4" TRS-Jack), Output (1/4" TRS-Jack), Send & Return A (2 x 1/4" Jack), Send & Return B (2 x 1/4" Jack); Power Supply connector: Barrel Connector 5.5 x 2.1 mm, center negative; Current Draw: 55 mA; powered by a 9 V Battery or a 9 V DC Power Supply (not included); suitable optional Power Supply: Item no. #409939; Dimensions: (W x D x H): 112 x 65 x 56 mm (4,41" x 2,56" x 2,2"); Weight: 260 g (0,57 lbs); Made in Germany