The CTK-3400 is specifically designed for schools and provides exceptional playability with 61 dynamic-touch keys, colour-coded panel layout, layer and split function, and registration memory.Dive into the diverse world of 200 tones and 126 rhythms or use the sampling function, "bend" the notes with the pitch bend wheel or connect an MP3 player via the audio output the CTK-3400 offers a wide range of features and functions. And the step-up learning system makes it easy to hear the progress made in your playing skills.The CTK-3400 also includes a handy dust-cover for keeping the keyboard tidy whilst not in use. Batteries AA size x 6Digital Effects 10 reverb effects enhance the sound diversity of your keyboardAC adaptor AD-E95100LEKeyboard 61 standard-size keysRhythms/Patterns 126 built-in rhythmsMIDI 16 multi-timbre received, GM level 1 standardTones 200 (AHL)Phones/Output Terminals Stereo standard jackTouch Response On, OffSize (WxDxH) 946 x 307 x 92mmPolyphony (maximum) 48