diff --git a/docs/devices/mx-master-3.txt b/docs/devices/mx-master-3.txt
new file mode 100644
index 00000000..d584874a
--- /dev/null
+++ b/docs/devices/mx-master-3.txt
@@ -0,0 +1,83 @@
+Unifying Receiver
+  Device path  : /dev/hidraw0
+  USB id       : 046d:c52b
+  Serial       : 32A29DF4
+    Firmware   : 12.09.B0030
+    Bootloader : 04.16
+    Other      : AA.AA
+  Has 1 paired device(s) out of a maximum of 6.
+  Notifications: wireless (0x000100)
+  Device activity counters: 1=18
+
+  1: Wireless Mouse MX Master 3
+     Codename     : MX Master 3
+     Kind         : mouse
+     Wireless PID : 4082
+     Protocol     : HID++ 4.5
+     Polling rate : 8 ms (125Hz)
+     Serial number: B0C9EC6E
+        Bootloader: BOT 95.00.B0013
+          Firmware: MPM 19.00.B0013
+             Other: 
+     The power switch is located on the base.
+     Supports 34 HID++ 2.0 features:
+         0: ROOT                   {0000}   
+         1: FEATURE SET            {0001}   
+         2: DEVICE FW VERSION      {0003}   
+         3: DEVICE NAME            {0005}   
+         4: WIRELESS DEVICE STATUS {1D4B}   
+         5: RESET                  {0020}   
+         6: unknown:0021           {0021}   
+         7: BATTERY STATUS         {1000}   
+         8: REPROG CONTROLS V4     {1B04}   
+         9: CHANGE HOST            {1814}   
+        10: unknown:2250           {2250}   
+        11: ADJUSTABLE DPI         {2201}   
+        12: SMART SHIFT            {2110}   
+        13: HIRES WHEEL            {2121}   
+            Multiplier: 15
+            Has invert
+              Normal wheel motion
+            Has ratchet switch
+              Normal wheel mode
+            Low resolution mode
+            HID notification
+        14: unknown:2150           {2150}   
+        15: unknown:2251           {2251}   
+        16: unknown:00C2           {00C2}   
+        17: unknown:1802           {1802}   internal, hidden
+        18: unknown:1803           {1803}   internal, hidden
+        19: unknown:1806           {1806}   internal, hidden
+        20: unknown:1813           {1813}   internal, hidden
+        21: unknown:1805           {1805}   internal, hidden
+        22: unknown:1830           {1830}   internal, hidden
+        23: unknown:1890           {1890}   internal, hidden
+        24: unknown:1891           {1891}   internal, hidden
+        25: unknown:18A1           {18A1}   internal, hidden
+        26: unknown:1DF3           {1DF3}   internal, hidden
+        27: unknown:1E00           {1E00}   hidden
+        28: unknown:1EB0           {1EB0}   internal, hidden
+        29: unknown:1861           {1861}   internal, hidden
+        30: unknown:9001           {9001}   internal, hidden
+        31: unknown:9203           {9203}   internal, hidden
+        32: unknown:9205           {9205}   internal, hidden
+        33: unknown:9300           {9300}   internal, hidden
+     Has 8 reprogrammable keys:
+         0: LEFT CLICK                , default: LeftClick                   => LEFT CLICK                
+             mse, pos:0, group:1, gmask:1
+         1: RIGHT CLICK               , default: RightClick                  => RIGHT CLICK               
+             mse, pos:0, group:1, gmask:1
+         2: MIDDLE BUTTON             , default: MiddleMouseButton           => MIDDLE BUTTON             
+             divertable, mse, reprogrammable, pos:0, group:3, gmask:7
+         3: BACK AS BUTTON 4          , default: BackEx                      => BACK AS BUTTON 4          
+             divertable, mse, reprogrammable, pos:0, group:2, gmask:3
+         4: FORWARD AS BUTTON 5       , default: BrowserForwardEx            => FORWARD AS BUTTON 5       
+             divertable, mse, reprogrammable, pos:0, group:2, gmask:3
+         5: unknown:00C3              , default: unknown:00A9                => unknown:00C3              
+             divertable, mse, reprogrammable, pos:0, group:3, gmask:7
+         6: unknown:00C4              , default: unknown:009D                => unknown:00C4              
+             divertable, mse, reprogrammable, pos:0, group:3, gmask:7
+         7: unknown:00D7              , default: unknown:00B4                => unknown:00D7              
+             divertable, virtual, pos:0, group:4, gmask:0
+     Battery: 100%, discharging.
+