Features: Indoor luxury column speaker adopts high-density wood structure. The voice is clear and bright.Simple installation mode. Applicable to schools, supermarkets, hotels, shopping malls, etc. Specification： Model T-303 Rated power 30W SPL(1W/1M) 92dB±3dB Impedance Black: Com Red: 330Ω Frequency response (-10dB) 80-20KHz Dimensions 135×120×520mm Speaker driver 4"×3 2.5"×1 Weight 4.4Kg