EC TECHNOLOGY&reg; New Premium Samsung Grade A Cells Adopted, Dual USB Output 16800mAh External Backup Polymer Battery Pack Brushed-metal Charger Power Bank Apple iPad Air, Retina iPad mini, iPhone 5S 5C 5, iPhone 4S, iPod(Lightning Cable not Provided), Samsung Galaxy Series Smartphones S4, S3 i9300, Note 3, HTC Sensation, One Max X V S, EVO 4G, Thunderbolt, HTC 8X, HTC Droid DNA, Nokia Lumia 1020 920 900 N9, Motorola Razr X 3 2 Bionic, Atrix 2, Triumph, LG Optimus, Nexus 4, Optimus Vu2 and Most Other Mobile Devices with DC 5V Input.(Dimension: 6.29" x 2.91" x 0.74" Inch)- 12 Months Warranty High Capacity: 16800mAh; 500 + recharge cycles over the life of the battery. Output: 2 USB ports for fast charge(One port 5V/ 1A, the other one 5V/ 2.1A) Input: 5V/ 1A. Dimension: 6.29" x 2.91" x 0.74" Inch. Surface oxidation treated aluminum alloy makes the machine sanitary, sturdy and durable. LCD display reveal the battery level exactly. Intelligent power manage IC, overcharge protection, short circuit protection. Package includes: 16800mAh External Battery/ 3 connectors for most phones/ 2 USB power wires (27.5inches and 5.9inches)/ 1 user manual