*Note:The speakers are passive speakers.Not suitable for projector. 100% CUSTOMER SATISFACTION 1 YEAR WARRANTY: We pride ourselves in ensuring customer satisfaction. Herdio provides Lifetime Support with our Professional Customer Support team. If it’s a technical question or a basic question we’ll be more than happy to help!. Dimensions: Total Speaker Diameter: 6.4 Inch Cut Out Diameter: 5.7 Inches Total Speaker Depth: 2.6 Inches Mounting Depth: 2.6 Inches. Easy to Install: the front grille is held up by magnets which holds it securely in place, but at the same time it's easy to remove without bending it. The large mounting clamp with non-slip tread grips ceilings or walls firmly for sure installation.No need for expensive professional installation. It is an easy upgrade to bring better sound into you existing home theater set up. for in home use, office, professional, or custom audio applications on any flat surface. MAGNETIC SPEAKER GRILL: The magnetic grill holds strong but is easy to remove and place. Includes built in round stain resistant speaker grills. Match existing flush mounted designs in your home or workplace for a clean look & achieve wide-range sound performance. 160WATTS MAX POWER:Ceiling speaker system were carefully combined to reproduce sound clearly with outstanding responsiveness. The polypropylene cone with rubber edge will help extending the life of the product perfect for custom audio applications.