The RH40 is a robust ABS plastic moulded horn speaker that is weatherproof making it ideal for outdoor announcements and great for outdoor event commentary. The 40 Watt speaker provides a loud and clear sound projecting your vocals across a large distance with ease. These speakers are a speaker of choice when hosing motorsport events, outdoor eventing and sporting events such as Marathons and bike races. They can be linked together and placed at finish/start lines or even circle paddocks/holding areas. Ensuing safety notices or briefings can be heard.