Marg AC Adapter for RockJam 61-Key 561 RJ561 RJ-561 661 RJ661 RJ-661 RJ761-SK,54-Key 654 RJ654 RJ-654 RJ6544 Rock Jam Electronic Digital Piano Keyboard 9V - 12V Power Supply Cord Charger

Marg is specializing in the production of high quality and economical replacement power supply for laptop ,tablet ,phones and other electrical appliances. Products are certificated with UL,CE, FCC etc. Safety Features: ?Over Current Protection, Over Voltage Protection, ?Over Temperature Protection, Short Circuit Protection. Product Specifications: ? Plug Type: US prong ? Input Voltage:AC 100-240VAC Worldwide Use ? Input Frequency Range: 50-60Hz 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