Ability to switch the unit on/off without getting up (handy when you’re seated or lying down). Adjust fan speed (low / medium / high) and possibly cooling intensity. Set a timer (for example 7-hour timer in the Touch 35 model) so that it switches off after a preset duration. Symphony Limited Possibly control auto‐swing (louver movement) from the remote. Some models allow selecting cooling mode, checking water level alarm, etc.