One USED: Roland Vdrum TD 20 brain module.

Sadly although it works the display screen is blank .

You can use 50 different drum kits but as the display is blank you can't change things like what sort of room your playing in eg, concert hall or small room things like that. I'm sure it's a easy fix for someone who knows what they are doing or could be sent to Roland to be sorted. Personally once I'd explored those other settings I never used them .  Still a dam good brain comes with user manual