Casio CTK-245 Piano , Fully functional , 2 source (Adaptor & Battery). Bigginersnokkke oru nallla option aan , adaptor working allla , but works in battery , adaptor change aaakya plug cheydm use cheyya , rechargeable batteries use aaakya clean aaait upayogikkka , nalla clean piece aaan ( price korchokke negotiate cheyya :•)