Durite reversing speaker Speaker announcement is "This vehicle is reversing" Used for warning external hazards of a potential threat when the vehicle is manoeuvring Suitable for use on large, light goods and public service vehicles. Automatically activates when reversing, night silent mode trigger waterproof to IP66. At 97dB it is loud enough to be heard over moving traffic. E Marked & R10 approved. H 80.30 x W 100.00 x D 73mm