Portable 4-channel Smart Amp & PA; 4 channels for guitar, bass, vocals, keys & more; smart features & Spark AI; Looper with drum tracks; battery power (optional); Effects for Vocals, Acoustic Guitar, Keyboard & More; 16 Customizable Presets; Bluetooth Audio Streaming; Built-in Mixer, Master EQ; Hard shell grille; 2x XLR/1/4” combo inputs; 2x 1/4 stereo inputs; 1x 1/8" headphone output; 2x 1/4" line level outputs; 2in/2out USB-C Audio Interface; USB-C Data Port; 1x MIDI in; Powersupply Included; Optional Battery: Positive Grid Spark 2 & Live Battery Pack (584593);