KARTAKOU Warmer Overdrive Tube Screamer Guitar pedal. As new. Specs: Controls – Pedal Switch, Bass Mod Switch, Crunchy Switch, Gain, Tone, Level Indicator – Check Indicator (serves also as battery check indicator), Light Rim Jacks – Input Jack, Output Jack, Adaptor Jack Input Impedance – 2Mohm Output Impedance – 100 Ohm Recommended Load Impedance – 10kOhm or greater Power Supply – DC 9V Current Draw – 10-20mA