OMNITRONIC NOH-40R is a passive PA horn speaker rated at 40 W RMS with an 8-ohm impedance. It features a durable aluminum housing, a mounting bracket, and IP44 protection for outdoor use. The speaker has a frequency range of 300–3000 Hz, sensitivity of 106 dB at 1 W/1 m, a grey finish, a depth of 33 cm, a diameter of 38 cm, and a weight of 2.05 kg. Connection is provided via a supply cord with open wires.