The PSR‎-E353 is jam‎-packed full of incredible instrument Voices‎,‎ accompaniment Styles and fun features‎.‎ It‎'‎s an ideal Portable Keyboard for beginners and hobbyists‎,‎ featuring touch sensitive keys‎,‎ on‎-board lessons‎,‎ computer and mobile device connectivity and much more‎.‎ Features‎:‎ Touch‎-sensitive keys add dynamics to your playing‎.‎ Play lightly and the sound is soft‎.‎ Hit the key hard and it‎'‎s loud‎.‎ The Aux Line Input allows you to connect any music device with a headphone output‎,‎ such as an MP3 player‎,‎ a computer‎,‎ a mixer or even another keyboard‎,‎ and hear it through the internal speakers‎.‎ Melody Suppressor isolates the melody of audio songs connected to the Aux Line Input jack and reduces the volume allowing you to sing along or play the lead‎.‎ Yamaha Education Suite ‎(‎Y‎.‎E‎.‎S‎.‎‎)‎ allows you to practice using the preset songs ‎(‎or MIDI files on compatible instruments‎)‎ at your own pace‎,‎ one hand at a time‎,‎ or both together‎.‎ The USB to HOST port allows you to connect and interact with a wide variety of educational‎,‎ music creation or music entertainment applications on a computer or mobile device Accompaniment Styles add a ‎"‎backing band‎"‎ to your performances while you remain in complete control of chord changes and arrangements‎.‎ The Arpeggio function intelligently creates melodic and rhythmic patterns based on the notes you play‎,‎ adding inspirational and expressive musicality to your performances‎.‎ Duo mode splits the keyboard into two halves‎,‎ each with their own ‎"‎middle C‎"‎ for practicing with a partner