Size : 44 Keys Power requirements batteries AA sizex6 or optional AC adaptor AD E95100l Product Type : Mini Keyboards Maximum polyphony 8 Amp output 0.8w+0.8w Tuning control A4 equals to approximately 440 Hz +/- 99 cents Included accesories song book Display screen LCD Product Type : Synthesizers Other functions piano tone or organ tone one touch button Input or output terminals external power 9.5V DC Tones 100 built in tones Brand : CASIO Other functions 5 drum pads Warranty: 3Years Warranty provided by Seller Rhythms or patterns 50 built in patterns Features : 44 mini size keys Speakers 8cm x 2 Others : Delivers powerful performance Built in songs 10 song bank Leson function melody on or off leson part melody part Input or output terminals headphones or output 3.5mm mini stereo jack Brand : Casio Dimensions w x d x h 604 x 211 x 57mm excluding music stand, and other projections Weight 1.4kg excluding batteries