Up for sale, a 2014 Boss TR-2 Tremolo effects pedal in near-mint condition and in perfect working order. The Boss TR-2 is designed to provide guitarists with classic Tremolo effects in an easy-to-use compact pedal. Dedicated "Wave," "Rate," and "Depth" knobs allow for a wide range of tones, from swampy and slow sine wave fluctuations to square wave machine gun chop.