RM PRO 4 - add support for "649b"
[12/12/2020, 00:06:53] [Broadlink RM] 
[Info] We've discovered an unknown Broadlink device. This likely won't cause any issues.

Please raise an issue in the GitHub repository (https://github.com/lprhodes/homebridge-broadlink-rm/issues) with details of the type of device and its device type code: "649b". The device is connected to your network with the IP address "192.168.1.234".

https://www.amazon.com/gp/product/B086VBXSDH/