Kilometer Electronics(KME) was established by a group of talented communication engineers and IC designers who believe in the philosophy of "Technologies make the world better". Since 2015, KME has targeted the biggest pain point of the IoT industry-the lack of wireless technology that can achieve three key features of wide coverage, low latency and low power consumption at the same time. KME successfully developed the ultra-low power wide area wireless technology-LaKi, including communication protocols and RF SoC. LaKi is currently the only wireless technology that achieves the three key features at the same time. It can be used for the last mile low-cost mass IoT coverage. The LaKi module has an average current of less than 3 μA in a communication mode with a communication distance of more than one kilometer and a heartbeat of one second.