mfr: OEM SYSTEMS 4" 2-WAY DRIVER ; POWER HANDLING: 70W MAX ; IMP: 8_ ; SENSITIVITY: 91 DB ; FREQ RESP: 60 HZ-20 KHZ ; WEATHERIZED FOR OUTDOOR USE; TAPPED FOR UNIVERSAL BRACKET SYSTEM; SHIELDED FOR VIDEO USE; STAINLESS STEEL GRILLES; DIM: 8.5"H X 5.5"W X 5"D; WEIGHT: 4 LBS; BLACK