BestCH 9V AC Adapter for Concertmate Electronic Keyboard 1000 1000M 1070 410 660 670 680 690 900 970 980 9VDC TC Helicon Duplicator Doubling Reverb Tone Vocal Effects Pedal Stompbox

Product Specifications: ? Plug Type: US prong ? Input Voltage:AC 100-240VAC Worldwide Use ? Input Frequency Range: 50-60Hz Kindly Note: ? This item is replacement power adapter ,not Orginal/Genuine. ? Please be kindly informed that the total wattage of the device should not exceed the max wattage (shown on the adapter's label) of this adaptor ? And we suggest it to be de-rated 10%-20% when using to prevent overheating Warnings: ? Don't open or modify the power supply / power cord/ power cable ? Please leave children, kids far away from high voltage power source ? Please use it under professional electrician's guides ? Any abuse or improper use will void warranty