The ultimate riot-control and large-scale crowd management tool. The RTN-188-USB is a monstrous 200W (Max) megaphone that delivers deafening, clear audio over massive distances. Powered by a high-capacity rechargeable Lithium battery, it guarantees you won’t lose power during critical situations. Features include a piercing siren, 120-second message recording, and USB playback, making it the most powerful handheld communication device in our catalog.