diff --git a/docs/devices/t400.txt b/docs/devices/t400.txt
new file mode 100644
index 00000000..76752b24
--- /dev/null
+++ b/docs/devices/t400.txt
@@ -0,0 +1,109 @@
+Receiver
+LZ2388S-DJ
+M/N:C-U0007
+(ltunify)
+Serial number: E6B794F8
+Firmware version: 012.001.00019
+Bootloader version: BL.002.014
+
+Mouse
+(ltunify)
+HID++ version: 2.0
+Device index 1
+Mouse
+Name: T400
+Wireless Product ID: 4026
+Serial number: 131A3093
+Device was unavailable, version information not available.
+Total number of HID++ 2.0 features: 27
+  0: [0000]     IRoot
+  1: [0001]     IFeatureSet
+  2: [0002]     unknown
+  3: [0003]     IFirmwareInfo
+  4: [0005]     GetDeviceNameType
+  5: [00C0]     DFUControl
+  6: [1000]     batteryLevelStatus
+  7: [1802]  HI unknown
+  8: [1810]  HI unknown
+  9: [1830]  HI unknown
+ 10: [1850]  HI unknown
+ 11: [1860]  HI unknown
+ 12: [1890]  HI unknown
+ 13: [18A0]  HI unknown
+ 14: [18E3]  HI unknown
+ 15: [1B00]     SpecialKeysMSEButtons
+ 16: [1D4B]     WirelessDeviceStatus
+ 17: [1DF3]  HI unknown
+ 18: [1E00]  H  unknown
+ 19: [1E80]  HI unknown
+ 20: [1F03]  HI unknown
+ 21: [1F04]  HI unknown
+ 22: [2100]     VerticalScrolling
+ 23: [2101]  H  unknown
+ 24: [2120]     HiResScrolling
+ 25: [2200]     MousePointer
+ 26: [6110]  H  TouchmouseRawPoints
+ 27: [1B03]     ReprogControlsV3
+(O = obsolete feature; H = SW hidden feature;
+ I = reserved for internal use)
+(solaar)
+Unifying Receiver
+  Device path  : /dev/hidraw2
+  USB id       : 046d:c52b
+  Serial       : E6B794F8
+    Firmware   : 12.01.B0019
+    Bootloader : 02.14
+  Has 1 paired device(s) out of a maximum of 6.
+  Notifications: (none)
+  Device activity counters: 1=134
+
+  1: Zone Touch Mouse T400
+     Codename     : T400
+     Kind         : mouse
+     Wireless PID : 4026
+     Protocol     : HID++ 2.0
+     Polling rate : 8 ms (125Hz)
+     Serial number: 131A3093
+          Firmware: RQM 39.00.B0029
+        Bootloader: BL  03.00
+          Hardware: 72
+             Other: 
+     The power switch is located on the base.
+     Supports 28 HID++ 2.0 features:
+         0: ROOT                   {0000}   
+         1: FEATURE SET            {0001}   
+         2: FEATURE INFO           {0002}   
+         3: DEVICE FW VERSION      {0003}   
+         4: DEVICE NAME            {0005}   
+         5: DFUCONTROL             {00C0}   
+         6: BATTERY STATUS         {1000}   
+         7: unknown:1802           {1802}   internal, hidden
+         8: unknown:1810           {1810}   internal, hidden
+         9: unknown:1830           {1830}   internal, hidden
+        10: unknown:1850           {1850}   internal, hidden
+        11: unknown:1860           {1860}   internal, hidden
+        12: unknown:1890           {1890}   internal, hidden
+        13: unknown:18A0           {18A0}   internal, hidden
+        14: unknown:18E3           {18E3}   internal, hidden
+        15: REPROG CONTROLS        {1B00}   
+        16: WIRELESS DEVICE STATUS {1D4B}   
+        17: unknown:1DF3           {1DF3}   internal, hidden
+        18: unknown:1E00           {1E00}   hidden
+        19: unknown:1E80           {1E80}   internal, hidden
+        20: unknown:1F03           {1F03}   internal, hidden
+        21: unknown:1F04           {1F04}   internal, hidden
+        22: VERTICAL SCROLLING     {2100}   
+        23: unknown:2101           {2101}   hidden
+        24: HI RES SCROLLING       {2120}   
+        25: MOUSE POINTER          {2200}   
+        26: TOUCHMOUSE RAW POINTS  {6110}   hidden
+        27: REPROG CONTROLS V3     {1B03}   
+     Has 7 reprogrammable keys:
+         0: LEFT CLICK                 => LeftClick                     mse, reprogrammable
+         1: RIGHT CLICK                => RightClick                    mse, reprogrammable
+         2: MIDDLE BUTTON              => MiddleMouseButton             mse, reprogrammable
+         3: METRO START SCREEN         => MetroStartScreen              mse, reprogrammable
+         4: ZOOMIN                     => Do Nothing                    mse, reprogrammable
+         5: ZOOMOUT                    => Do Nothing                    mse, reprogrammable
+         6: BACK HSCROLL               => TouchBackForwardHorzScroll    
+     Battery: 100%, discharging.