diff --git a/cores/arduino/HID.cpp b/cores/arduino/HID.cpp
index dfcbd9d..cdf49bd 100644
--- a/cores/arduino/HID.cpp
+++ b/cores/arduino/HID.cpp
@@ -498,87 +498,6 @@ size_t Keyboard_::release(uint8_t k)
 	return 1;
 }
 
-size_t Keyboard_::press(uint8_t k[], uint8_t len) {
-	uint8_t i;
-	uint8_t result = 0;
-	for (i=0; i<len; i++) {
-		result += press(k[i]);
-	}
-	return result;
-}
-
-size_t Keyboard_::press(uint8_t k1, uint8_t k2) 
-{
-	uint8_t k[] = {k1, k2};
-	return press(k, 2);
-}
-
-size_t Keyboard_::press(uint8_t k1, uint8_t k2, uint8_t k3) 
-{
-	uint8_t k[] = {k1, k2, k3};
-	return press(k, 3);
-}
-
-size_t Keyboard_::press(uint8_t k1, uint8_t k2, uint8_t k3, uint8_t k4) 
-{
-	uint8_t k[] = {k1, k2, k3, k4};
-	return press(k, 4);
-}
-
-size_t Keyboard_::press(uint8_t k1, uint8_t k2, uint8_t k3, uint8_t k4, uint8_t k5) 
-{
-	uint8_t k[] = {k1, k2, k3, k4, k5};
-	return press(k, 5);
-}
-
-size_t Keyboard_::press(uint8_t k1, uint8_t k2, uint8_t k3, uint8_t k4, uint8_t k5, uint8_t k6) 
-{
-	uint8_t k[] = {k1, k2, k3, k4, k5, k6};
-	return press(k, 6);
-}
-
-
-
-size_t Keyboard_::release(uint8_t k[], uint8_t len) {
-	uint8_t i;
-	uint8_t result = 0;
-	for (i=0; i<len; i++) {
-		result += release(k[i]);
-	}
-	return result;
-}
-
-size_t Keyboard_::release(uint8_t k1, uint8_t k2) 
-{
-	uint8_t k[] = {k1, k2};
-	return release(k, 2);
-}
-
-size_t Keyboard_::release(uint8_t k1, uint8_t k2, uint8_t k3) 
-{
-	uint8_t k[] = {k1, k2, k3};
-	return release(k, 3);
-}
-
-size_t Keyboard_::release(uint8_t k1, uint8_t k2, uint8_t k3, uint8_t k4) 
-{
-	uint8_t k[] = {k1, k2, k3, k4};
-	return release(k, 4);
-}
-
-size_t Keyboard_::release(uint8_t k1, uint8_t k2, uint8_t k3, uint8_t k4, uint8_t k5) 
-{
-	uint8_t k[] = {k1, k2, k3, k4, k5};
-	return release(k, 5);
-}
-
-size_t Keyboard_::release(uint8_t k1, uint8_t k2, uint8_t k3, uint8_t k4, uint8_t k5, uint8_t k6) 
-{
-	uint8_t k[] = {k1, k2, k3, k4, k5, k6};
-	return release(k, 6);
-}
-
-
 void Keyboard_::releaseAll(void)
 {
 	_keyReport.keys[0] = 0;
diff --git a/cores/arduino/USBAPI.h b/cores/arduino/USBAPI.h
index ee35af9..5169e65 100644
--- a/cores/arduino/USBAPI.h
+++ b/cores/arduino/USBAPI.h
@@ -129,21 +129,6 @@ public:
 	virtual size_t write(uint8_t k);
 	virtual size_t press(uint8_t k);
 	virtual size_t release(uint8_t k);
-	
-	virtual size_t press(uint8_t k[], uint8_t len);
-	virtual size_t press(uint8_t k1, uint8_t k2);	
-	virtual size_t press(uint8_t k1, uint8_t k2, uint8_t k3);	
-	virtual size_t press(uint8_t k1, uint8_t k2, uint8_t k3, uint8_t k4);	
-	virtual size_t press(uint8_t k1, uint8_t k2, uint8_t k3, uint8_t k4, uint8_t k5);	
-	virtual size_t press(uint8_t k1, uint8_t k2, uint8_t k3, uint8_t k4, uint8_t k5, uint8_t k6);	
-
-	virtual size_t release(uint8_t k[], uint8_t len);
-	virtual size_t release(uint8_t k1, uint8_t k2);	
-	virtual size_t release(uint8_t k1, uint8_t k2, uint8_t k3);	
-	virtual size_t release(uint8_t k1, uint8_t k2, uint8_t k3, uint8_t k4);	
-	virtual size_t release(uint8_t k1, uint8_t k2, uint8_t k3, uint8_t k4, uint8_t k5);	
-	virtual size_t release(uint8_t k1, uint8_t k2, uint8_t k3, uint8_t k4, uint8_t k5, uint8_t k6);	
-	
 	virtual void releaseAll(void);
 };
 extern Keyboard_ Keyboard;