Two. The 15km transmission distance can only be obtained underneath the FCC standard when measured in an outside environment without having interference. The SRRC conventional is adopted in mainland China, plus the furthest transmission length is eight km. Mavic 3M with RTK module for centimeter-amount positioning. Flight Management, the camera, https://m3mhomes.com/residential/m3m-floors-sector-9-manesar-gurgaon/