What this means
The IEEE assigned the MA-M block 6C93089 to Shenzhen DOOGEE Hengtong 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 6C:93:08:9, it is Shenzhen DOOGEE Hengtong Technology CO., LTD hardware.