Generic 20000mAh Power Supply High Capacity Power Bank Portable Battery Charger for Smart Phones, iPhone,iPad,Sony Ericsson, Samsung, HTC, MP3, MP4, Blackberry,and Most Other Mobile Devices With DC 5V Input -Green Cool sleek appearance, elegant with a streamline design, comfortable, light, perfect for handbags, laptop bags etc. Built-in 20000mAh high capacity rechargeable lithium battery ,Long battery lifespan! Designed to provide extra power for Mobile Phones and other appliances,perfect for using on your travels and on your outdoor activities! Safe and Reliable, Voltage protection system to avoid short circuit and auto off, charging power intelligently Compatible with Nokia, iPhone, iPad, Samsung s3 s4, MP3, MP4, and any other mobile devices with a USB cable.