1. Item description: 3500mah Dual USB Output External Battery Power pack charger 

2. Features:

• Brand new 
• Used as packup power for mobile phone, tablet, digital camera, PDA, MP3, MP4, etc.
• Built-in 3500mAh high capacity rechargeable Lipo battery
• Designed to provide power for your iPhone, iPad, iPod ,iPad.
• Compatible with Nokia, Samsung, HTC, MP3, MP4, and other mobile phones...
• High efficiency of power conversion.
• Partable, practical and long cycle life.
• Safe and reliable, perfect for using on traveling and outdoor activities.

 3. Specification:

• Capacity: 3500mah
• Cell type: Lithium Polymer
• Casing: Stainless steel
• Input: 5V/0.5A
• Output: 5V/1A, 5V/2.1A
• Self-charging time: 4-5 hours
• Size:70x70x15.2m
• Color: Silver

4. Package contents:

• 1 x 3500 mAh Power External Battery
• 1 x USB to Micro-USB cable