This is the BEHRINGER BLUES OVERDRIVE BO100 guitar effects pedal. This pedal provides a blues-style overdrive sound. The main features are as follows: It features a warm, nuanced sound like a vintage tube amp. Dedicated control knobs for LEVEL, TONE, and GAIN allow you to precisely adjust your preferred sound. The blue status LED lets you check the effect's on/off status. It has a high-quality on/off switch that maintains a pure signal in bypass mode. - Brand: BEHRINGER - Model Name: BO100 - Type: Overdrive - Controls: LEVEL, TONE, GAIN - Input/Output Terminals: IN, OUT - Power: Battery or adapter compatible Thank you for viewing.