Boho Tronics &reg; Wall Home Travel Dock USB Charger and 2 Extended Lithium Ion NFC (Supports Google Wallet and S BEAM) Battery 4200 mAh W/ Back Case Combination Pack Bundle Lot - Compatible with Samsung Galaxy S3 SIII GT-i9300 This combination pack is designed for the Samsung Galaxy S3 i9300 and includes: (One) wall USB charger and (Two) Extended NFC Batteries with Back Cases Charger includes USB port for secondary charging of any USB device Charger features indicator light that turns from red to blue when charging is complete Back case cover for phone is included with the extended battery Reasonable price and fast free shipping from trusted USA seller