This 44 key mini keyboard is easy to play even for small hands. 100 High quality built-in tones. Tone direct buttons. 50 Rhythm patterns in a variety of genres such as pops ballad and dance. 10 Built-in songs to play along with. Layer two tones sustain key and reverb functions. Performance functions such as octave shift transpose scale tuning and more. Headphone plug for private listening. 2 x 0.8W Speakers. Use with AC power supply or 6AA batteries. Power supply and batteries are NOT included.