*KeyFeatures *Immersive Music Experience: With a peak power of 150W, each speaker delivers powerful sound resonance and exceptional audio quality. With a wide frequency response range of 68Hz to 20kHz, every detail from deep bass to crisp highs is captured with crystal clarity. The 8 impedance ensures stable and efficient audio signal transmission. Elevate your sound experience to the next level! *Bluetooth Connectivity, Ultimate Convenience: Effortlessly stream your favorite music wirelessly with our main speaker's built-in Bluetooth chip. Experience stable, instant pairing with any Bluetooth device. Expand your audio reach by connecting the main and secondery speakers in series. Experience seamless audio with the convenience of wireless connectivity. *Unique Acoustic Architecture: Immerse yourself in stunning audio clarity with our ceiling mounted speaker. Each speaker is equipped with a 6.5'' woofer and a 1'' tweeter, delivering lifelike sound that brings your music and movies to life. The innovative rubber sealing strip and robust ABS housing avoid audio leakage, ensuring you experience every note in pure, high-fidelity brilliance. *Detachable & Customizable Grille: Our easy-to-disassemble grille isn't just about cleaning convenienceit's about making your space truly yours. Paint the grille to match your walls for a flawless, integrated look that enhances your interior decor. Elevate your homes style while enjoying pristine audio performance. Experience easy cleaning and endless customization! *Installation is a Breeze: Transform your space in no time! Just cut a 6.4''(162 mm) hole in your ceiling, secure the speaker to the ceiling via the mounting buckle, and connect the power. For larger spaces, consider purchasing additional secondery speakers (up to 3 in series) for a layout to achieve greater sound coverage. Secondery speakers available in-store. ******************************************************************************************************* *Specifications Item Model Number: 645-BT Max Output Power: 150W Frequency Response: 68Hz-20KHz Impedance: 8 Sensitivity: 89dB Quantity: 4 PCs Cutout Diameter: 6.4 in/162 mm Speaker Dimensions(Diameter x Depth): 7.5 x 3.4 in/190 x 86 mm ******************************************************************************************************* *Pakcage Content 4 x Ceiling Speakers 4 x 16.4ft/5 m Speaker Wire( for Connecting Secondary Speaker) 1 x Power Adapter 1 x User Manual