Tech Gadgets Innovations on Instagram: "Meet the Navy’s Manta Ray — the underwater drone turning the ocean floor into a silent intelligence network 🌊🚀 Designed for ultra-long missions, it recently completed full trials in Southern California. With an expected range of around 6,000 buoyancy-driven miles, it can then settle on the seabed for months, quietly monitoring vital maritime routes. This strategy flips naval operations: autonomous watchers track the slow, strategic movements, while high-