Samsung 2100 mAh Replacement Batteries for Galaxy S3 ATT/Sprint/T-Mobile Models, Pack of 2 - Non-Retail Packaging - Silver (Bulk Packaging) Samsung original batteries for the Galaxy S3 This battery is equipped with an NFC antenna, allowing your handset to communicate with other devices and accessories equipped with NFC technology. 2100mAh battery allows you to store power necessary to keep your device charged throughout the day Pack of 2 Batteries Bulk Packaging