【Multi-Function Effect】 The BOSS OS-2 has both overdrive and distortion functions, offering a wide range of tones. 【Operability】 You can easily adjust the tone with four knobs, allowing settings to match your playing style. 【Robust Design】 BOSS effects pedals are highly durable and perfect for live performances. - Brand: BOSS - Model: OS-2 - Color: Yellow - Functions: Overdrive/Distortion - Output Terminals: OUTPUT - Input Terminals: INPUT - Number of Knobs: 4 - Check Lamp: CHECK Thank you for viewing.