Etekcity Wingman 16000M - 16000mAh High Capacity, Multi-Voltage USB Charger Power Bank/External Battery Pack - 12V/16V/19V Power Output & 5V USB Port for Laptops, Notebooks Netbooks, Tablets, Smartphones, iPhones, iPads, and So Much More High capacity of 16000mAh - 5V USB charger and 12/16/19V laptop charger in one Multiple output voltages for compatibility with many different devices - Comes with 20 adapters Slim, portable, and lightweight  Stylish, ultra-thin (13mm) aluminum body for efficient heat dissipation and longevity Lithium polymer battery and built-in safety protection systems ensure reliable, safe, and optimal performance LED indicators display remaining power for easy monitoring of charge status