OMNITRONIC WC-4 PA Wall Speaker is a passive 100 V public address loudspeaker with a 5-inch full-range driver and 6 W RMS rated power handling. It features a durable white plastic cabinet without a rear panel and a white metal grille. The speaker provides a frequency range of 150–15,000 Hz, 92 dB sensitivity and a maximum SPL of 99 dB. It is designed for wall or ceiling mounting in installations such as restaurants, bars, hotels and sports centres.