Produced in Japan and Taiwan in the '80s, the Boss HF-2 Hi Band Flanger is designed to combine your original signal with the delayed signal shifted one octave up. This creates a unique flange that sounds a bit like the Boss BF-2, but far brighter and cleaner. Tweak your flanger with four simple controls to get the shimmer or languid, soupy sound you want - the Manual, Depth, Rate, and Res controls are sure to get you the singular flanger sound you're looking for.