diff --git a/BleKeyboard.h b/BleKeyboard.h
index a5b1fd3..42de529 100644
--- a/BleKeyboard.h
+++ b/BleKeyboard.h
@@ -25,6 +25,10 @@
 
 #include "Print.h"
 
+#define BLE_KEYBOARD_VERSION "0.0.4"
+#define BLE_KEYBOARD_VERSION_MAJOR 0
+#define BLE_KEYBOARD_VERSION_MINOR 0
+#define BLE_KEYBOARD_VERSION_REVISION 4
 
 const uint8_t KEY_LEFT_CTRL = 0x80;
 const uint8_t KEY_LEFT_SHIFT = 0x81;
@@ -44,6 +48,7 @@ const uint8_t KEY_TAB = 0xB3;
 const uint8_t KEY_RETURN = 0xB0;
 const uint8_t KEY_ESC = 0xB1;
 const uint8_t KEY_INSERT = 0xD1;
+const uint8_t KEY_PRTSC = 0xCE;
 const uint8_t KEY_DELETE = 0xD4;
 const uint8_t KEY_PAGE_UP = 0xD3;
 const uint8_t KEY_PAGE_DOWN = 0xD6;
@@ -75,6 +80,23 @@ const uint8_t KEY_F22 = 0xF9;
 const uint8_t KEY_F23 = 0xFA;
 const uint8_t KEY_F24 = 0xFB;
 
+const uint8_t KEY_NUM_0 = 0xEA;
+const uint8_t KEY_NUM_1 = 0xE1;
+const uint8_t KEY_NUM_2 = 0xE2;
+const uint8_t KEY_NUM_3 = 0xE3;
+const uint8_t KEY_NUM_4 = 0xE4;
+const uint8_t KEY_NUM_5 = 0xE5;
+const uint8_t KEY_NUM_6 = 0xE6;
+const uint8_t KEY_NUM_7 = 0xE7;
+const uint8_t KEY_NUM_8 = 0xE8;
+const uint8_t KEY_NUM_9 = 0xE9;
+const uint8_t KEY_NUM_SLASH = 0xDC;
+const uint8_t KEY_NUM_ASTERISK = 0xDD;
+const uint8_t KEY_NUM_MINUS = 0xDE;
+const uint8_t KEY_NUM_PLUS = 0xDF;
+const uint8_t KEY_NUM_ENTER = 0xE0;
+const uint8_t KEY_NUM_PERIOD = 0xEB;
+
 typedef uint8_t MediaKeyReport[2];
 
 const MediaKeyReport KEY_MEDIA_NEXT_TRACK = {1, 0};