DESC: The NS-IC600 6.5-inch in-ceiling speaker is good for 2-channel sound reproduction or home theater use in a living room, dining room, family room or bedroom. The NS-IC600 uses a blue polypropylene mica cone woofer and fluid-cooled soft- dome swivel tweeter in a coaxial design. The tweeter swivels so it can be aimed for most effective high frequency output. The paintable grille with magnets makes it easy to attach or remove for quick installation. The large mounting clamp with non-slip tread grips ceilings or walls firmly for sure installation.