diff --git a/Code/devterm_keyboard/devterm.h b/Code/devterm_keyboard/devterm.h
index 8e42577..b860971 100644
--- a/Code/devterm_keyboard/devterm.h
+++ b/Code/devterm_keyboard/devterm.h
@@ -1,6 +1,7 @@
 #ifndef DEVTERM_H
 #define DEVTERM_H
 
+#define KEY_LATENCY 80
 
 #include <USBComposite.h>
 typedef struct key_debouncing{
@@ -23,6 +24,7 @@ class DEVTERM {
     HIDKeyboard *Keyboard;
     HIDMouse *Mouse; 
     HIDJoystick *Joystick;
+    HIDConsumer *Consumer;
     KEYBOARD_STATE Keyboard_state;
     USBCompositeSerial *_Serial;
     //if not to use USBCompositeSerial,then use default Serial
diff --git a/Code/devterm_keyboard/devterm_keyboard.ino b/Code/devterm_keyboard/devterm_keyboard.ino
index 610f051..64225d9 100644
--- a/Code/devterm_keyboard/devterm_keyboard.ino
+++ b/Code/devterm_keyboard/devterm_keyboard.ino
@@ -10,6 +10,14 @@
 USBHID HID;
 DEVTERM dev_term;
 
+const uint8_t reportDescription[] = { 
+   HID_CONSUMER_REPORT_DESCRIPTOR(),
+   HID_KEYBOARD_REPORT_DESCRIPTOR(),
+   HID_JOYSTICK_REPORT_DESCRIPTOR(),
+   HID_MOUSE_REPORT_DESCRIPTOR()
+};
+
+
 void setup() {
   USBComposite.setManufacturerString("ClockworkPI");
   USBComposite.setProductString("DevTerm");
@@ -18,6 +26,7 @@ void setup() {
   dev_term.Keyboard = new HIDKeyboard(HID);
   dev_term.Joystick = new HIDJoystick(HID);
   dev_term.Mouse    = new HIDMouse(HID);
+  dev_term.Consumer = new HIDConsumer(HID);
   
   dev_term.Keyboard_state.shift = 0;
   dev_term.Keyboard_state.layer = 0;
@@ -25,7 +34,7 @@ void setup() {
   
   dev_term._Serial = new  USBCompositeSerial;
   
-  HID.begin(*dev_term._Serial,HID_KEYBOARD_MOUSE_JOYSTICK);
+  HID.begin(*dev_term._Serial,reportDescription, sizeof(reportDescription));
 
   while(!USBComposite);//wait until usb port been plugged in to PC
   
diff --git a/Code/devterm_keyboard/keyboard.h b/Code/devterm_keyboard/keyboard.h
index bbab2ac..69dd55a 100644
--- a/Code/devterm_keyboard/keyboard.h
+++ b/Code/devterm_keyboard/keyboard.h
@@ -43,10 +43,10 @@ void keyboard_init(DEVTERM*);
 #define KEY_PRESSED 1
 #define KEY_RELEASED 0
 
-#define KEY_PRNT_SCRN 0xCE //Print screen
-#define KEY_PAUSE  0xd0
+#define KEY_PRNT_SCRN 0xCE //Print screen - 0x88 == usb hut1_12v2.pdf keyboard code
+#define KEY_PAUSE  0xd0 // - 0x88 == usb hut1_12v2.pdf keyboard code
 
-#define KEY_VOLUME_UP 0x108
-#define KEY_VOLUME_DOWN 0x109
+#define KEY_VOLUME_UP 0x108  // - 0x88 == usb hut1_12v2.pdf keyboard code
+#define KEY_VOLUME_DOWN 0x109 //  - 0x88 == usb hut1_12v2.pdf keyboard code
 
 #endif
diff --git a/Code/devterm_keyboard/keyboard.ino b/Code/devterm_keyboard/keyboard.ino
index bbd6e26..50fd73c 100644
--- a/Code/devterm_keyboard/keyboard.ino
+++ b/Code/devterm_keyboard/keyboard.ino
@@ -164,7 +164,7 @@ void keyboard_task(DEVTERM*dv)
               jack_idx = r*MATRIX_ROWS+c;
             }else{              
               jack_time +=1;
-              if( jack_time % (DEBOUNCE*40) == 0){
+              if( jack_time % (DEBOUNCE*KEY_LATENCY) == 0){
                 if(jack_idx > 1){//skip select,start button 
                   matrix_press(dv,r,c);
                 }
diff --git a/Code/devterm_keyboard/keymaps.ino b/Code/devterm_keyboard/keymaps.ino
index ac59ba9..1ccf01a 100644
--- a/Code/devterm_keyboard/keymaps.ino
+++ b/Code/devterm_keyboard/keymaps.ino
@@ -51,7 +51,9 @@ enum SKEYS {
   _FN_KEY_UP_ARROW, // Simulate Mouse.move
   _FN_KEY_DOWN_ARROW, //Mouse.move
   _FN_KEY_LEFT_ARROW, //Mouse.move
-  _FN_KEY_RIGHT_ARROW //Mouse.move
+  _FN_KEY_RIGHT_ARROW, //Mouse.move
+  _FN_BRIGHTNESS_UP, //USB Consumer brightness up https://github.com/torvalds/linux/blob/7fe10096c1508c7f033d34d0741809f8eecc1ed4/drivers/hid/hid-input.c#L903
+  _FN_BRIGHTNESS_DOWN, //USB Consumer brightness down 
 
 };
 
diff --git a/Code/devterm_keyboard/keys.ino b/Code/devterm_keyboard/keys.ino
index 8606f56..50d2b57 100644
--- a/Code/devterm_keyboard/keys.ino
+++ b/Code/devterm_keyboard/keys.ino
@@ -93,7 +93,7 @@ void keys_task(DEVTERM*dv){
             keys_jack_idx = c;
           }else{              
             keys_jack_time +=1;
-            if( keys_jack_time % (KEY_DEBOUNCE*40) == 0){
+            if( keys_jack_time % (KEY_DEBOUNCE*KEY_LATENCY) == 0){
               keypad_action(dv,c,KEY_PRESSED);
             } 
           }