Korg Kross 88-Key Portable Synthesizer Workstation Bundle with Keyboard Stand, SD Card, Sustain Pedal, USB Cable, Instrument Cable, Headphones, and Polishing Cloth External input jacks allow a mic or external audio source to be directly connected. Stereo audio recorder allows you to record and overdub your performances and vocals Pro-quality EDS-i sound engine built-in, with a total of seven effects available for simultaneous use Favorites function lets you register 64 selected sounds or audio songs for one-touch access - a great feature for live performances A wide variety of sounds that utilize twice as much PCM memory as previous instruments, and meet the needs of a broad range of musical styles