Specification Brand : J-ZMQER Color : BLACK Label : J-ZMQER Manufacturer : J-ZMQER PartNumber : J-ZMQER-23-9.10-198 ProductGroup : CE ProductTypeName : CHARGING_ADAPTER Publisher : J-ZMQER SmallImage_Height : 75 SmallImage_URL : https://m.media-amazon.com/images/I/31DdCpXhQuL._SL75_.jpg SmallImage_Width : 75 Studio : J-ZMQER Title : J-ZMQER AC Adapter Compatible with Yamaha NP30 NP31 NP-11 Portable Grand Digital Piano Power Supply