Yamaha PortaSound PSS-110 is a portable keyboard with a variety of features that make it a great choice for beginners and experienced musicians alike. With 32 keys, the PSS-110 can play a wide range of notes, and its five different instrument voices allow you to create a variety of sounds. The built-in rhythm section provides accompaniment for your playing, and the tempo control lets you adjust the speed of the beat. The PSS-110 also has a variety of percussion instruments and animal voices that can be played using the 14 keys on the left and right sides of the keyboard.