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*** Need accessories? Check out our other listings for strings, picks, capos, tuners, cables, and more. Most accessories ship FREE when added to the purchase of another item from our shop! ***This MXR M-291 Dyna Comp Mini packs the classic Dyna Comp compression into a smaller footprint, about half the size of the original. It uses the rare CA3080 metal can IC for quieter operation, more transparency, and better dynamic range compared to modern clones. The Attack switch lets you toggle between slow and fast attack times with a red LED indicator—slow for that vintage sustain, fast for punchier response.Controls are straightforward: Sensitivity sets the compression amount, Output handles volume, and the footswitch toggles on/off with a blue status LED. It's buffered bypass, draws just 4mA, and runs on 9VDC—no battery option. Great for tightening up your signal without coloring the tone too much.Dimensions are compact at 1.5 in wide, 3.63 in deep, and 1.2 in high. Solid build, easy to fit on any board.SpecificationsDimensions: 1.5 in width, 3.63 in depth, 1.2 in heightPower: 9VDC, 4mA current drawControls: Sensitivity (compression amount), Output (volume), Attack switch (slow/fast)Bypass: BufferedMax compression: 36 dBConditionThis item has been tested and is in good working condition. It does not come with original packaging. It has no Velcro on the back. No power supply included.