diff --git a/bootloaders/caterina/Caterina.hex b/bootloaders/caterina/Caterina-Leonardo.hex
similarity index 96%
rename from bootloaders/caterina/Caterina.hex
rename to bootloaders/caterina/Caterina-Leonardo.hex
index b3e1ed6..d7873af 100644
--- a/bootloaders/caterina/Caterina.hex
+++ b/bootloaders/caterina/Caterina-Leonardo.hex
@@ -242,8 +242,8 @@
 :107F1000262FF999FECF1FBA92BD81BD20BD0FB6A5
 :107F2000F894FA9AF99A0FBE01960895F894FFCF43
 :107F30004341544552494E41007777000A00000002
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-:107F50000701000201000109023E00020100803217
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+:107F50000001000201000109023E0002010080321E
 :107F6000090400000102020100052400100104249C
 :107F700002040524060001070582030800FF090426
 :107F80000100020A000000070504021000010705B5
diff --git a/bootloaders/caterina/Caterina-Micro.hex b/bootloaders/caterina/Caterina-Micro.hex
new file mode 100644
index 0000000..7479210
--- /dev/null
+++ b/bootloaders/caterina/Caterina-Micro.hex
@@ -0,0 +1,256 @@
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diff --git a/bootloaders/caterina/Descriptors.c b/bootloaders/caterina/Descriptors.c
index f1756e2..824e0dd 100755
--- a/bootloaders/caterina/Descriptors.c
+++ b/bootloaders/caterina/Descriptors.c
@@ -53,8 +53,8 @@ const USB_Descriptor_Device_t DeviceDescriptor =
 
 	.Endpoint0Size          = FIXED_CONTROL_ENDPOINT_SIZE,
 
-	.VendorID               = 0x2341,
-	.ProductID              = 0x0701,
+	.VendorID               = DEVICE_VID,
+	.ProductID              = DEVICE_PID,
 	.ReleaseNumber          = VERSION_BCD(00.01),
 
 	.ManufacturerStrIndex   = 0x02,
@@ -193,7 +193,13 @@ const USB_Descriptor_String_t ProductString =
 {
 	.Header                 = {.Size = USB_STRING_LEN(16), .Type = DTYPE_String},
 
-	.UnicodeString          = L"Arduino Leonardo"
+	#if DEVICE_PID == 0x0034
+	.UnicodeString          = L"Arduino Leonardo" 
+	#elif DEVICE_PID == 0x0035
+	.UnicodeString			= L"Arduino Micro   "
+	#else 
+	.UnicodeString			= L"USB IO board    "
+	#endif
 };
 /*
 const USB_Descriptor_String_t SerialNumString = 
diff --git a/bootloaders/caterina/Makefile b/bootloaders/caterina/Makefile
index ef583bc..3ec7b14 100755
--- a/bootloaders/caterina/Makefile
+++ b/bootloaders/caterina/Makefile
@@ -46,6 +46,17 @@
 # To rebuild project do "make clean" then "make all".
 #----------------------------------------------------------------------------
 
+# USB vendor ID (VID)
+# official Arduino LLC VID
+VID = 0x2341
+
+
+# USB product ID (PID)
+# official Leonardo PID
+#PID = 0x0034
+# official Micro PID
+PID = 0x0035
+
 
 # MCU name
 MCU = atmega32u4
@@ -193,6 +204,8 @@ CDEFS  = -DF_CPU=$(F_CPU)UL
 CDEFS += -DF_USB=$(F_USB)UL
 CDEFS += -DBOARD=BOARD_$(BOARD) -DARCH=ARCH_$(ARCH)
 CDEFS += -DBOOT_START_ADDR=$(BOOT_START)UL
+CDEFS += -DDEVICE_VID=$(VID)UL
+CDEFS += -DDEVICE_PID=$(PID)UL
 CDEFS += $(LUFA_OPTS)