diff --git a/lib/logitech_receiver/special_keys.py b/lib/logitech_receiver/special_keys.py
index 496dfd0f..5f0bdbb6 100644
--- a/lib/logitech_receiver/special_keys.py
+++ b/lib/logitech_receiver/special_keys.py
@@ -74,6 +74,7 @@ CONTROL = _NamedInts(
     My_Videos=0x0031,
     My_Computer_As_HID=0x0032,
     My_Computer_As_Win_E=0x0033,
+    FN_Key=0x0034,
     Launch_Picture_Viewer=0x0035,
     One_Touch_Search=0x0036,
     Preset_1=0x0037,
@@ -266,12 +267,40 @@ CONTROL = _NamedInts(
     Multiplatform_App_Switch_2=0x0100,  # Multiplatform_App_Switch
     Fn_Inversion__Hot_Key=0x0101,
     LeftAndRightClick=0x0102,
-    Show_Desktop_Fn=0x0103,  # MX Keys for Business Fn F5 ; MX Mini Fn F6 Dictation
-    Backlight_Down_Fn=0x0108,  # MX Keys for Business Fn F6 ; MX Mini Fn F7 Emoji
-    Screenshot=0x010A,  # MX Keys for Business top 3rd from right; MX Mini Fn F8 Screenshot
-    Lock_Fn=0x0117,  # MX Mini Lock (on delete key in function row)
-    Backlight_Up_Fn=0x011C,  # MX Keys for Business Fn F7 ; MX Mini Fn F9 Microphone Mute
-    LED_Toggle=0x013B,  #
+    Voice_Dictation=0x0103,  # MX Keys for Business Fn F5 ; MX Mini Fn F6 Dictation
+    Emoji_Smiley_Heart_Eyes=0x0104,
+    Emoji_Crying_Face=0x0105,
+    Emoji_Smiley=0x0106,
+    Emoji_Smilie_With_Tears=0x0107,
+    Open_Emoji_Panel=0x0108,  # MX Keys for Business Fn F6 ; MX Mini Fn F7 Emoji
+    Multiplatform_App_Switch__Launchpad=0x0109,
+    Snipping_Tool=0x010A,  # MX Keys for Business top 3rd from right; MX Mini Fn F8 Screenshot
+    Grave_Accent=0x010B,
+    Tab_Key=0x010C,
+    Caps_Lock=0x010D,
+    Left_Shift=0x010E,
+    Left_Control=0x010F,
+    Left_Option__Start=0x0110,
+    Left_Command__Alt=0x0111,
+    Right_Command__Alt=0x0112,
+    Right_Option__Start=0x0113,
+    Right_Control=0x0114,
+    Right_Shift=0x0115,
+    Insert=0x0116,
+    Delete=0x0117,  # MX Mini Lock (on delete key in function row)
+    Home=0x118,
+    End=0x119,
+    Page_Up=0x11A,
+    Page_Down=0x11B,
+    Mute_Microphone=0x11C,  # MX Keys for Business Fn F7 ; MX Mini Fn F9 Microphone Mute
+    Do_Not_Disturb=0x11D,
+    Backslash=0x11E,
+    Refresh=0x11F,
+    Close_Tab=0x120,
+    Lang_Switch=0x121,
+    Standard_Key_A=0x122,
+    Standard_Key_B=0x123,
+    Standard_Key_C=0x124,  # There are lots more of these
 )
 
 for i in range(1, 33):  # add in G keys - these are not really Logitech Controls
@@ -314,7 +343,6 @@ TASK = _NamedInts(
     WindowsRestore=0x001B,
     WindowsMinimize=0x001C,
     Music=0x001D,  # also known as MediaPlayer
-
     # Both 0x001E and 0x001F are known as MediaCenterSet
     Media_Center_Logitech=0x001E,
     Media_Center_Microsoft=0x001F,
@@ -493,7 +521,43 @@ TASK = _NamedInts(
     App_Switch=0x00D5,
     Fn_Inversion=0x00D6,
     LeftAndRightClick=0x00D7,
-    LedToggle=0x00DD,  #
+    Voice_Dictation=0x00D8,
+    Emoji_Smiling_Face_With_Heart_Shaped_Eyes=0x00D9,
+    Emoji_Loudly_Crying_Face=0x00DA,
+    Emoji_Smiley=0x00DB,
+    Emoji_Smiley_With_Tears=0x00DC,
+    Open_Emoji_Panel=0x00DD,
+    Multiplatform_App_Switch__Launchpad=0x00DE,
+    Snipping_Tool=0x00DF,
+    Grave_Accent=0x00E0,
+    Standard_Tab_Key=0x00E1,
+    Caps_Lock=0x00E2,
+    Left_Shift=0x00E3,
+    Left_Control=0x00E4,
+    Left_Option__Start=0x00E5,
+    Left_Command__Alt=0x00E6,
+    Right_Command__Alt=0x00E7,
+    Right_Option__Start=0x00E8,
+    Right_Control=0x00E9,
+    Right_Shift=0x0EA,
+    Insert=0x00EB,
+    Delete=0x00EC,
+    Home=0x00ED,
+    End=0x00EE,
+    Page_Up=0x00EF,
+    Page_Down=0x00F0,
+    Mute_Microphone=0x00F1,
+    Do_Not_Disturb=0x00F2,
+    Backslash=0x00F3,
+    Refresh=0x00F4,
+    Close_Tab=0x00F5,
+    Lang_Switch=0x00F6,
+    Standard_Alphabetical_Key=0x00F7,
+    Right_Option__Start__2=0x00F8,
+    Left_Option=0x00F9,
+    Right_Option=0x00FA,
+    Left_Cmd=0x00FB,
+    Right_Cmd=0x00FC,
 )
 TASK._fallback = lambda x: 'unknown:%04X' % x
 # Capabilities and desired software handling for a control