Add a deeper depth of bass to your music and moviesOpposed Dual Driver technology reduces distortionPowerful Class D amplifier delivers exacting performanceDynamic EQ optimizes performance in real timeFeatures Formation® Wireless TechnologySets up in momentsWirelessly connects with Formation speakers-Technical features :Digital Signal Processing (DSP)Digital amplifier Dynamic EQ-Drive units   2 x 165mm long throw bass unit Frequency response  20Hz to 150Hz  Amplifier power output  250WInput voltage100V ? 240V ? 50/60Hz   Power consumption,Below 6 Watts  (Sleep)*AirPlay 2 compatibility:iPhone, iPad, and iPod touch with iOS 11.4 or later, Apple TV 4K or Apple TV (4th Generation) with tv OS 11.4 or later, Mac or PC with iTunes 12.8 or later.Connections:Network (RJ45 Ethernet or WiFi)USB ? service only Dimensions:Height: 234mm Width: 440mm Depth: 240mm Weight: 12.1kg