This is an overdrive pedal from Soul Power Instruments, featuring an ultra-compact Nutube vacuum tube. The distortion changes depending on the strength of your picking and the volume knob. At full volume (10), it distorts, and when you roll back the volume, it becomes clean. You can adjust the sound of the distortion to your liking to some extent with the internal trim pot. There are many scratches, but there are no issues with the operation. The center toggle switch allows you to switch between "Fender Mode" and "Marshall Mode". The only included accessory is the warranty/instruction manual. I will ship quickly, but it may be delayed due to work. Shipping will be via Letter Pack Plus.