The Electro-Harmonix 22500 is a compact-yet-advanced dual stereo looper pedal for your instruments or microphone with impressive functionality. Recording up to 100 loops on a single removable SDHC card (8GB included, up to 12 hours of recording time), the 22500 records and plays back non-compressed audio so as to not degrade your original signal. Dual stereo loops can start and stop and the tap of your foot, and a parallel mode allows playback of two stereo loops at once. Reverse and octave switching let you change things up on the fly, and the "Stop" switch can double as a tap tempo which controls not only one of the preset drum loops, but also allows your loops to be perfectly quantized. An optional external controller allows you to bank through stored loops so you can have your whole set or complex songs right at your feet.