What this means
The IEEE assigned the MA-M block B0FD0BE to Shenzhen FEIBIT Electronic 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 B0:FD:0B:E, it is Shenzhen FEIBIT Electronic Technology Co.,LTD hardware.