1. Circuit board size: about 47mm * 36mm * 10mm recommended 1590BB effector shell

2. Working voltage: DC9V external positive internal negative

3. Knob adjustment: RV1-DRIVE (A100K), RV2-TONE (B100K), RV3-LEVEL (A100K)

4. The finished effector is made by hand. Please be careful with those who require high appearance, perfectionists and picky!