There's also an XLR microphone input, MIDI In and Out/Thru connectors, heavy duty footswitches, three bypass options, and a jack for connecting an optional expression pedal or two additional footswitches. The DL4 MkII is also smaller and lighter than the original, making it an even more appealing choice for modern musicians. Features 15 new MkII delay models 15 original DL4 delay models 15 “secret” reverb models An improved Looper, plus a new 1 Switch Looper option, offering 240 seconds mono or 120 seconds stereo record time—and much longer with a microSD™ card (not included) 128 customizable preset locations (6 via footswitches, and an additional 122 via MIDI) MIDI IN, OUT/THRU, and USB MIDI for preset, parameter, and Looper control Stereo in/Stereo out, via 1/4 (unbalanced) jacks True analog bypass, as well as options for DSP or Buffered bypass Tap Tempo and MIDI Clock tempo sync 4 on-board, multi-function footswitches with colored LED indicators External expression pedal + footswitch (or dual external footswitch) connectivity, configurable for preset, parameter, or Looper control XLR Mic In, with built-in preamp and input level adjustment USB C for external MIDI control and easy firmware updating Specifications Delays: 30 Reverbs: 15 Looper: Yes, with both a 4-Switch and 1-Switch Looper user interface Mono/Stereo: Mono or stereo input and output USB: USB-C port - for potential future firmware updates and USB; MIDI control via computer SD Card: 1 x microSD card slot - for expanded Looper memory Audio Inputs: 2 x 1/4 unbalanced Left (mono) and Right, Instrument level, Impedance = 1 M?, Max input level = +11.25 dBu (8Vpp) 1 x XLR Mic In, with preamp Audio Outputs: 2 x 1/4 unbalanced Left (mono) and Right, Instrument level, Impedance = 100 Ohms MIDI: MIDI 5-pin IN and OUT/THRU; USB MIDI In and OUT/THRU - for use via computer applications Power Requirements: 9VDC, 500mA, center pin negative, 2.1 mm. It is recommended to use the included Line 6 DC-1g power adapter Dimensions (H x W x D): 2 x 9.25 x 4.5 inches / 5.1 x 23.5 x 11.4 cm Weight: 2.03 lbs. / .92 kg Watch: Line 6 | DL4 MkII | Overview