Battery boost and mobile backup.Kingston’s MobileLite Wireless G3 charges smartphones and tablets faster, with a 2A output charging maximum, and charges phones up to 2x from a single, fully charged MLWG3*. It features a 5,600 mAh battery and lets you wirelessly access the contents of a USB drive or SD card**. MobileLite Wireless Pro adds 64GB*** of built-in storage, extendable via USB drives and SD cards, and up to 2.5x charge via its 6,900 mAh battery. Both drives have premium Japanese battery cells that make the battery more reliable and longer lasting than their competitors’.Access USB Flash drives and SD cards wirelessly from smartphones and tablets to free up space, make backup copies of important photos, videos, contact and calendar entries and transfer files to a new phone or tablet without using a PC. Save by not paying monthly fees for cloud-based backup services. MLWG3 and MLW Pro have an SD card slot and a USB port and come with a microSD to SD card adapter. MLWG3 and MLW Pro work with Android, Amazon and iOS devices.- Battery backup- Easily back up your mobile devices- Access USB Flash drives and SD cards wirelessly from your smartphone- MobileLite Wireless Pro adds 64GB*** of built-in storage, extendable via USB drives and SD cards*Based on internal testing of iPhone 6 using a fully charged MLWG3/64. Actual results may vary. Battery life varies depending upon the usage and user application functions. Battery is not replaceable.**Storage not included. User must provide compatible storage device.***Some of the listed capacity on a Flash storage device is used for formatting and other functions and thus is not available for data storage. As such, the actual available capacity for data storage is less than what is listed on the products. For more information, go to Kingston’s Flash Guide at kingston.com/flashguide.