Herdio is a professional audio speaker manufacturer with 10+ years experience. it has a good reputation in ceiling speaker, outdoor speaker, marine speaker and audio system for many years. We integrates professional-grade audio technology and love for music into speakers, in an attempt to give the best present for customers. Herdio standards and superior quality brings you ultimate using experience. Elevate your audio experience with Herdio's 4-inch ceiling speakers. These speakers sound great, delivering powerful and clear audio throughout your space. The flush mount design allows for seamless integration into your ceiling, providing immersive sound without compromising your room's aesthetics. Enhance your audio experience without sacrificing space. These 4-inch ceiling speakers offer a clutter-free solution for your home or office. you can create a seamless sound system that disappears into your ceiling, providing quality audio while maintaining a clean, uncluttered look in any room. Our 4-inch ceiling speakers deliver high-quality sound for various scenarios. Compact yet powerful, they integrate seamlessly into ceilings without sacrificing aesthetics, ideal for residential and commercial use. Compact flush mount design, smooth grille, for simple easy installation in-wall / in-ceiling and on any flat surface, blends in with the ceiling Extremely narrow bezel & smooth grille, Herdio ceiling speakers is an ideal way to add superior quality sound without taking up any additional space The ceiling speaker consists of a 1" tweeter + 6.5" woofer,and has built-in high definition digital stereo effects & impressive superior sound effects Spring-loaded speaker terminals allow for easier installation & removal, quick & easy installation without the need for expensive installation HCS428PRSX2 HCS428PRS HCS828PRSX2 HCS828PRS