Features Tightly-woven mesh drum heads enhance feel and playing response Five-piece pad set with 8/8/10 dual-zone toms, 12 dual-zone snare, and 8 Kick Four-piece cymbal set with 12� hi-hat, (2)12� crashes with choke and 14� triple-zone ride Crimson II drum module with 74 kits (54 factory + 20 user) and 671 sounds Load .WAV or .MP3 samples and play-along tracks via USB memory stick Real-time recording (5 tracks internally; up to 99 tracks via USB memory stick) USB/MIDI output for use with virtual instrument and recording software Premium 4-post quick lock Chrome rack with double-braced snare stand All connection cables, mounting hardware and power supply included Contents 8 Mesh Kick Pad 12 Dual-Zone Mesh Snare Pad (2) 8 Dual-Zone Mesh Tom Pads 10 Dual-Zone Mesh Tom Pad DMPad 12 Hi-Hat (2) DMPad 12 Crashes with Choke DMPad 14 Triple-Zone Ride DMHat Pedal Premium 4-Post Quick Lock Chrome Rack Snare Stand Cable Snake Cable for Crash 2 Cable Wrap Strips Drumsticks Drum Key Power Supply Module User Guide Kit Assembly Guide Safety & Warranty Manual Crimson II Sound Module Requirements For USB-MIDI performance and system updates Mac: OS X 10.7-10.11 PC: Windows 7, Windows 8, or Windows 10 The Perfect Feel and Premium Hardware: The Alesis Crimson II Kit is a Nine-piece electronic drum kit featuring exclusive Alesis mesh drum heads (U.S. Patent 9,424,827) that delivers the perfect feel and expression. It features an 8-inch kick, 12-inch dual-zone snare, two 8-inch dual-zone rack toms and a 10-inch dual-zone floor tom, along with a 12-inch hi-hat with pedal, two 12-inch crashes with choke and 14-inch triple-zone ride. A premium quick lock chrome 4-post rack with separate double-braced snare stand keeps everything solidly anchored, no matter how hard you play! �Loaded with Great Sounds and Features: The included Crimson II Drum Module features 74 drum kits (54 factory + 20 user) with over 671 sounds and 120 play-along tracks built-in. To further sharpen your skill, there�s a built-in metronome, real time recorder, and 1/8-inch input for playing along with your mobile device, so you�ll be ready for the studio or stage. There is also a stereo pair of 1/4-inch outputs, headphone output, and a USB-MIDI output for triggering your favorite virtual instrument plugins. �Load Your Own Samples: The Crimson II Drum Module also features a USB memory stick input. You can use this input to load your own .WAV samples for the ultimate flexibility. Once the .WAV samples are loaded, you can easily assign these to any zone of any pad on the Crimson Mesh Kit. The sonic possiblities are endless! You can also load in .WAV files of play-along tracks using this input.