An effects pedal that combines tremolo and reverb. It has been used on stage about 10 times, so it shows signs of use. Also, the reverb switch doesn't work well, and often doesn't respond unless pressed firmly. Please be aware of this. - Model Name: TRE-VERB - Functions: Tremolo, Reverb - Control Knobs: LEVEL, RATE, DEPTH, BLEND, DWELL, TONE - Included: Box, Instruction Manual - LED Indicators: Blue and Red LEDs Thank you for viewing.