The Boldr Smart Thermostat is compatible with all ductless air conditioners and heat pumps from nearly every make and model, including mini-splits, window ACs, air-to-air heat pumps, and traditional air conditioners. The only requirement is that the AC must be compatible with an IR remote control with a display showing the present settings. As The Boldr Smart Thermostat relies on receiving the IR signals from the specific remote to replicate the commands and control your AC.