A case for this. A dongle for that. Stop carrying around an arsenal of attachments and grab a Nexpaq Modular Smartphone Case. This unique protective cover lets you mix-and-match from a variety of modules that add functionality to your phone, like additional batteries, an amplified speaker, a temperature and humidity sensor, flash storage, and even a breathalyzer. Available in black or white for the iPhone 6, 6 Plus, Samsung Galaxy S6 Edge, and Samsung Galaxy S5.