Buttons Play/Pause, Volume up, Volume down, Mute. Only compatible devices support infrared control function on Xiaomi Smart Speaker (IR Control). Tested with models: fans: CHANGHONG CFS-LD402RF, Midea FS40-13GR; Projectors: Epson EMP-1710, HITACHI HCP-810X; Air conditioner: MIJIA KFR-50GW/N1A1; TV displays: Mi LED TV 4S 65’’, Mi TV P1 50’’; LED: Panasonic HHXZ4034