loudspeaker6.5?x 1 0.75??x 1effective frequency range90hz~18k hzrated power10wmaximum sound pressure level (1m)103?2dbsensitivity (1m/1w)90db?2db - 103?2 dbthis product is a coaxial two-frequency ceiling speakers. with wide angle and high output power, it can output good sound effect. besides, it?s easy to install. it?s an ideal choice for you .ultra-narrow edge design, with ral white coating, fit in with all indoor occasions; with 6.5 inch bass unit, its magnetic body processed by engineering plastics with coaxial 0.75 inch treble unit, crisp and clear. high pitched diffract loading provides wider range coverage; complied with iec268-5 power handling capability (phc) standard, and can work continuously for 100 hours at rated power; powerful clip design, durable and relible, easy to install.