An in-ceiling speaker with KEF's Uni-Q driver array for even sound dispersion and a shallow mount for tight spaces.200mm Uni-Q driverWeather resistant, IP64 certifiedUltra-Thin BezelKEF Ci200.2CR In-Ceiling SpeakerSKU: SP3936ASpecifications Frequency response (±6dB): 45Hz-20kHz Sensitivity: 90 dB Mounting depth: 97.2 mm Dimensions (H x W x D): 289.6 x 289.6 x 103.3 mm Cut-out: 240 x 240 mm Weight: 1.6 kg