Useful performance functions: Octave shift: Raise or lower the pitch of notes in octaves to cover a wide range of registers Tuning: Adjust the tuning in 1Hz increments to match other instruments or vocals Transpose: Raise or lower notes in semitone steps Metronome: Useful for practicing playing at a constant tempo Tempo adjustment: Change the tempo of the rhythm and metronome to suit the music Reverb: Adds a reverberation effect to the sound for a broader range of musical expression Maximum 32-note polyphony: Designed so that keys will sound even when many others are played at the same time LCD screen: Everything you need to know in one place Features 32 mini keys make it easy to play, even for small hands 100 high-quality built-in tones covering a range of instruments, including piano, wind, percussion and many others, sampled from acoustic instruments Tone direct buttons let you select piano, trumpet or drum set tones with a single touch 50 rhythm patterns in a variety of genres, including pops, ballad, dance, and more 10 built-in songs to play along with – or mute the melody and play it yourself Specifications Number of Keys: 32 Maximum Polyphony: 32 Number of Tones: 100 Number of Rhythms/Patterns: 50 Built-in Songs: 10 Songs: Melody Off Speaker: 8cm x 2 Amplifiers: 0.5W + 0.5W Power Supply 2-way [AC Adaptor] AD-E95100L (DC 9.5V) [Batteries] AA-size alkaline batteries x 6 (Approximately 12 hours continuous operation) AA-size rechargeable nickel metal hydride batteries x 6 (Approximately 10 hours continuous operation) Power Consumption: 3.2W Product Dimensions: 446 x 208 x 51 mm Weight: 1.0 kg Color: White PHONES/OUTPUT Yes: Stereo mini jack