This is a variant of the TinyBeast made by Tyrantt with the Meteor 65 Pro frame and the new AIR FC from BetaFPV.
I use the AIR65 PID settings and it flies perfectly https://support.betafpv.com/hc/en-us/articles/32980449219865-CLI-and-Firmware-for-Air65-Racing.

For the props I use GEMFAN 1610 bi-blades 40mm cut.