LUMIAUDIO’s FLF-8TFT is a new ceiling speaker that incorporates a revolutionary toolless installation mechanism. This new design automatically engages the dog legs when the speaker is inserted into the cutout hole while adjusting to surface thickness - effectively reducing installation time in half! The quick installation mechanism and affordable price of the speaker combine to make it the perfect choice for today’s discriminating audio buyer while offering the installer/reseller increased sales and profits. Besides, this speaker includes a built-in 70V/100V transformer, which is perfect for commercial installations.