The XW Series are the beginning of a new era at Casio. Featuring a powerful monophonic lead synth, an unprecedented built-in step sequencer and performance controller functions, its no wonder the XW-P1 has won numerous awards from the industry's leading publications. The Solo Synth is just one of the powerful sound engines in the XW Series. This unique six oscillator design can emulate classic analog synths, create powerful leads and huge bass sounds. Each XW also features a 9 track step-sequencer for creating drum tracks, bass lines and more. Tracks in the Step Sequencer can even drive other MIDI devices and computer applications, including the iPad & reg;. Sequences can be transposed live allowing for a truly interactive experience. Casio is also proud to offer a new line of products to the XW family, including a feature-packed DJ controller and high performance headphones. Specifications Lightweight On-ear Headphones in Three Colors Durable, Folding Headband Dynamic Transducer 40mm Drivers 103dB/mW Max Sound Pressure Level 20Hz to 20kHz Frequency Response 100mW Max Input Power 22 Ohm Impedance 3.3 Foot Detachable Cable 3.5mm Mini Stereo Gold Plated Connector ¼” / 6.3mm Stereo Plug Adapter Included