Alesis Strata Core 9-Piece Electronic Drum Kit With 7" Touchscreen & Bluetooth. Specs: Drums- Snare: 12" dual-zone mesh Kick drum: 8" mesh tower Toms: Dual-zone mesh heads, Number of pieces: 9-piece kit, Cymbals: 360-degree ARC design, Module Touchscreen: 7" color display, Sound engine: BFD3 powered, Preloaded kits: 75 factory kits, Multi-channel samples: Over 144,000, Connectivity: Bluetooth and MIDI, Mesh heads: Adjustable tension, Cymbal design: 360-degree realism, Hi-hat: Active magnetic controller, Rebound: Customizable for player preference, Hardware Rack material: Curved steel, Adjustability: Maximum configuration options, Design: Compact and space-saving, Connectivity Outputs: Two TRS main outputs, Headphone output: 1/4" and 1/8" USB: MIDI I/O and USB drive support, Aux input: 1/8" stereo TRS.