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The Quantum Radar technology was incredibly advanced, allowing for ultra-long-distance scanning, even capable of penetrating large obstacles like mountains—only the energy consumption was enormous. If the maximum distance omnidirectional scan were activated, the energy points consumed would be astronomical, which the Drone's energy points could hardly support.
However, when the Quantum Radar narrowed its scanning range to a very small radius and used it to connect to the Network World, as well as perform various data uploads and downloads, the energy consumption was still huge, but Yan Fei was now able to afford it, which was why he used the Quantum Radar to connect to the network.
