The Model 100X Portable Hailing System is a self-contained, hand-held, portable communications device for use in tactical communications. The 100X has the capability to be 20-30dB louder than legacy bullhorns and vehicle-based P.A. systems, while still being 4-6x louder and more intelligible than products with a comparable size and weight. Weighing only 15lb with battery, accessories, and cables, the 100X can penetrate buildings and vehicles to ensure communications are heard and understood. The 100X has an 8-hour rechargeable battery, optional power sources, and water-resistant casing.