Electronic Keyboard's collection of basic features and functions make this keyboard the perfect choice for just about any player, from novice to skilled musicians. The keyboards in this series are best suited for those who are interested in taking up the keyboard as a hobby, those interested in becoming more serious about the keyboard Please note: this piano has only 1 speaker and another one is just to show off, it records only key sound not mic input. this is specially designed for kids and not for professionals. Important instructions: Please use standard size AA battery only. recommanded brands are : EVERREADY, DURACELL Dont use batteries while operating through DC Power. it may heat the batteries and damage the product Use 2 to 4 volt DC adapter only