Discover the Vodasafe Portable UAV Signal Blocker DJ100N, a powerful 2500MHz 5AH LiFePO4 drone signal jammer with 7dbi antennas. This portable device offers a 500-meter shielding distance, jamming four frequency bands simultaneously. Perfect for prisons, military compounds, and VIP protection, it features adjustable power, LED indicators, and a built-in battery for 60-90 minutes of operation.