250W; 8 speakers; .5 high-compliance polymer tweeter; Polypropylene cone with rubber edge; Sensitivity: 89dB @ 1W/1m; Freq resp: 40Hz-20kHz; Imp: 8ohm ; 100V/240V power; Bluetooth(R) 4.0 streaming; 2-way stereo sound; 4-channel digital amp; Quick-connect spring-loaded speaker terminals; Mounts flush to walls or ceilings; ABS construction; Weight: 5.12lbs; Dim (each): 11.2 dia x 3.9D; Cutout dim (each): 9.4 dia x 3.5D; Includes four 8 speakers, 4 removable round grilles, 4 removable square grilles, speaker connection wire, Bluetooth(R) control receiver & power supply; White;