diff --git a/20-mouse.conf b/20-mouse.conf
index 19b4a1a..c0291d1 100644
--- a/20-mouse.conf
+++ b/20-mouse.conf
@@ -246,6 +246,27 @@
 EndSection
 
 Section "InputClass"
+    Identifier      "Elecom EPRIM Blue LED 5 Button Mouse 228"
+    MatchUSBID      "056e:0141"
+    MatchDevicePath "/dev/input/event*"
+    Option          "Mouse CPI" "1700"
+EndSection
+
+Section "InputClass"
+    Identifier      "Elecom M Size Mouse Black 227"
+    MatchUSBID      "056e:0158"
+    MatchDevicePath "/dev/input/event*"
+    Option          "Mouse CPI" "1700"
+EndSection
+
+Section "InputClass"
+    Identifier      "Elecom M Size Blue LED Mouse 203"
+    MatchUSBID      "056e:0159"
+    MatchDevicePath "/dev/input/event*"
+    Option          "Mouse CPI" "1800"
+EndSection
+
+Section "InputClass"
     Identifier      "Apple mice (other)"
     MatchUSBID      "05ac:*"
     MatchDevicePath "/dev/input/event*"