What this means

The IEEE assigned the MA-M block 943EFD1 to ShenZhen Chino-e Communication 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 94:3E:FD:1, it is ShenZhen Chino-e Communication Co., Ltd. hardware.