For Straight Talk / Net10 Samsung Galaxy Proclaim / R455c / T528G / R375c / R355c / Galaxy Precedent SCH-M828c Life-Tech 3100mAh Dual Ports USB Car Charger Adapter Dual 2-Ports USB sockets allow you to charge 2 devices at once Output: 5V-3100mA Output Charge most devices that use a USB charging cable, (eReader, iPod, iPhone, cell phone, MP3, PDA, Blackberry etc..)) IC Chip recognizes a full battery & automatically switches to saver mode USB Cable is not included.