Neey Bluetooth Mac prefix for 4a active balancer?

[JohnGalt1717]

Hi all, I'm trying to integrate the Neey 4a active balancer into esphome and I need the mac of the balancer, but I can't figure out which one is the right mac for it.

Anyone happen to have one and know the mac or can run a Bluetooth sniffer and find it? Just need the first 3 groups.

Thanks!