※ Full-range unit uses high-end aerospace magnet steel; ※ Full paper basin edge configuration, medium frequency vocal highlights, meeting conference room voice characteristics; ※ Very suitable for small conference rooms and large conference room sound compensation; ※ Rated power: 30W; Constant resistance: 8 ohms; ※ Frequency response: 100Hz-15KHz; ※ Sensitivity: 90±3 dB; ※ Ceiling opening: Φ180mm; ※ Decorative cover size: Φ213*161mm; ※ Installation form: ceiling type; ※ Material: ABS ;※ Weight: 1.4kg; ※ Speaker unit size: 5"*1+1"*1;