This flat 6-inch full-range passive wall speaker is designed for indoor 100 V public address systems. It provides 15 W RMS power handling, a frequency range of 185 to 15,500 Hz, 92 dB sensitivity, and a maximum SPL of 104 dB. The speaker has a shock-resistant plastic enclosure, white metal grille, closed-box construction, M5 thread, lens head fitting, and switchable 3.8 W, 7.5 W, or 15 W power tapping via screw terminal. Dimensions are 20 by 14.2 by 27.5 cm and weight is 1.70 kg.