Boss TE-2 Tera Echo Pedal Next-generation BOSS compact pedal with innovative Multi-Dimensional Processing, realized with proprietary technology and custom DSPRich, spacious echo and ambience effectsDramatically enhances the direct tone, but never overwhelms itFreeze function holds the ambient sound for lead backing and sound effectsUltra-responsive to volume changes and playing dynamicsWide range of sound adjustment with simple controlsMono/stereo input and output