Major successfully makes IoT device warning strokes for people stockbot 0 42 2023.12.01 09:46 https://vietnamnews.vn/society/1637310/major-successfully-makes-iot-de… + 3 https://vietnamnews.vn/rss/society.rss + 4 The device is compact, weighs about 200 grammes and has the size of a computer mouse.