TechOrbits 6440mAh Extended Battery Pack Combo Samsung Galaxy Note 4 N910 4G N910V Verizon N910T TMobile N910A at&T N910P Sprint TPU Back Cover NFC/Google Wallet 3 Year Warranty Black Replacement TechOrbits Extended battery replacement for Samsung galaxy Note 4. NFC/Google Wallet Functionality High Capacity: More than double your original Note 4 battery's capacity with TechOrbits' 6440mAh extended battery! Built-in IC chip prevents overcharging. Top of the line TPU back cover: Our TPU back cover insures that your extended battery is properly covered. Comes with a sound chamber for speaker and microphone. Li-Ion Battery - Capacity 6440 mAh. Grade A cells ensure longer battery life (500+ cycles) and high-speed, efficient charging. What you get:1 X TechOrbits Extended battery for Galaxy Note 4 + 1 X Protective case + 3 YEAR warranty and unparalleled customer service.