Boss CH-1 Stereo Super Chorus Pedal

BOSS CH-1 Super Chorus Effects Pedal Features: Effect Level, EQ, Rate, and Depth controls   Input Impedance: 1 Mohms Output Impedance: 10 Kohms or greater Residual Noise Level: -95dBu (IHF-A, Typ.) Connectors: Input Jack, Output Jack A (mono)/ B, AC Adapter Jack (DC 9V) Power Supply: 9V DC, either a Dry Battery 9V type or an AC Adapter Current Draw: 22 mA (DC 9V) Accessories: Dry Battery 9V type Optional AC Adapter - Roland PSA-120S 2-7/8" W x 5-1/8" D x 2-3/8" H Weight: 15 oz