iPhone 4 (GSM) Power Button, Proximity Light Sensor, and Microphone Flex Cable Replacement Kit with DM Tools and Instructions Included - DIYMOBILITY REPLACEMENT POWER FLEX CABLE FOR THE IPHONE 4 INCLUDES A FULL DM TOOL KIT, DIYMOBILITY(TM) INSTRUCTIONS (if not included, then simply e-mail us), POWER FLEX CABLE [INCLUDES POWER BUTTON, PROXIMITY SENSOR & NOISE CANCELLING MICROPHONE PRE-ATTACHED] 60 DAY WARRANTY PROVIDED BY SELLER BRAND NEW, HIGH QUALITY GUARANTEED. FREE SHIPPING! GSM (AT&T AND T-MOBILE)