Casio Model Name:SA-77 No. Of Keys:49 Chorus:No Reverb:No Ultra Wide Stero:No Master EQ:No Number of Preset Voices:100 Number of Preset Styles:50 Number of Preset Songs:10 Fingering:Single Data Capacity(no Of Notes):NA Amplifiers:0.8W 0.8W Speakers:2 Power Supply(In Volts):9.5 Portability:Yes Skill Level:Beginners Warranty(Months):36