Yamaha YPT-255 Portable Keyboard Is packed full of great sounds and features, ideal for aspiring musicians who are just starting out. Use the on-board lesson feature, Yamaha Education Suite (Y.E.S.) to learn the 100 preset songs, or take advantage of 385 instrument Voices and 100 Styles to experiment and create your own music. The Aux Line Input turns the YPT-255 into a speaker system for your MP3 player so you can play along or just listen, all for a very affordable price. The YPT-255 comes with a diverse array of 385 different voices, including pianos, flutes, and guitars. The grand piano voices in particular utilize stereo-sampled sounds with a superb feeling of presence. Players can enjoy reverb effects for the feeling of playing in a concert hall, and choruses that add extra breadth and resonance to the sound. The lesson function offers a total of nine stages—three for the left hand, three for the right, and three for both hands, helping beginning players to practice the songs stored in the instrument. There's a scoring function that makes it fun to practice and improve, and a "Waiting" function that adjusts the tempo to the person playing, pausing the accompaniment until the correct note is played. Weighing in at less than 9 lbs, the YPT-255 is light enough to take anywhere with ease. It can even run on batteries for live performances when you're out and about. Connect your audio player to the YPT-255 and listen to, or play along with your favorite music through the instrument's speakers. The YPT-255 is equipped with a preset Master EQ that allows you to adjust tithe nuances of the keyboard sound with settings such as Bright and Boost, making it easier to get exactly the sound you like. 100 auto accompaniment Styles provide real-time band backing tracks based on the chords you play. Specs: 61 keys LCD display Tone Generating Technology AWM Stereo Sampling Polyphony 32 Number of Voices 372 Voices + 13 drum/SFX kits Effects: Reverb , ChorusMaster EQ ,Ultra-Wide Stereo , Panel Sustain Number of Preset Styles 100 Fingering Multi Style Control : Style Control ACMP ON/OFF, SYNC START, START/STOP, INTRO/ENDING/rit, MAIN/AUTO FIL One Touch Setting (OTS) Number of Preset Songs 102 Yamaha Education Suite (Y.E.S.) Metronome Amplifiers 2.5W+2.5W Includes: sheet music stand , power supply , user manual