Full-range 4 '' speaker, made of ABS with UV protection for 70 / 100V lines, Low loss transformer 10W @ 100V, 5W @ 70V, Frequency response: 100-15000Hz +/- 5dB, Sensitivity: 95 dB ( 1W 1m), Dimensions in mm (Diameter x height) 215 x 245, Color: Green. Protection degree IP 66.