HQRP AC Adapter & Sustain Pedal for Casio CTK-2000 CTK-2100 CTK-3000 CTK-451 CTK-471 CTK-481 LK-50 LK-55 LK-73 LK-230 LK-270 CTK-710 CTK-720 CTK-800 CTK-810 CTK-900 LK-100 LK-200 LK-200S Keyboards HQRP&reg; AC Adapter plus HQRP&reg; Sustain Pedal Piano Style; Input: AC 100V - 240V; Output: 9V; 850mA; UL Listed; Safety Features: High Efficiency and Reliability; Automatic Overload cut-off; Automatic Thermal cut-off; Short circuit and Over Voltage protection; Low Interference & Noise. Connector: 1/4 inch; The pedal is made in piano-style. Has a specially designed lower rubber part allowing the pedal to stay in place while you play. For all electronic keyboards, synthesizers, tone modules or drum machines with 1/4" phone jack sustain-pedal input. 200 days warranty!