The PSR-E453 is an ideal first keyboard in many ways, but also a robust alternative for more experienced players who are seeking advanced features as they perform or compose their own music.It also has built-in AUX IN jack. It represents great value for music that will grow with players as they build their abilities and confidence. It has PATTERN function to create your own grooves.Real-time Control Knobs, real-time pitch control is also integrated. With a variety of 755 High Quality Voices which includes super-realistic sweet and cool voices you can create any kind of melody.