DUALELECT LU43PW Indoor/ Outdoor Speaker w/ Bracket/ White Power handling: 50 watts rms, 100 watts peak 4 in polyelite woofer with PVA treated surround 40mm polypropylene midrange and 20mm piezo dome tweeter 4/6 ohms impedance Frequency response: 100Hz/20kHz 5 1/4 in W x 8 1/4 in H x 5 1/4 in D Part Number: LU43PW