What this means

The IEEE assigned the MA-M block 08F80D1 to Shenzhen DophiGo IoT Technology Co.,Ltd. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting 08:F8:0D:1, it is Shenzhen DophiGo IoT Technology Co.,Ltd hardware.