invites apparently not every device: Acer tablet no, LG G 2 yes
EasyAcc 10000mAh Power Bank Dual USB Portable Ultra-compact charger External Battery for iPhone iPad mobile phone Samsung Galaxy Smartphones Tablets Google Glass Black + Orange (Personal Computers) 3
EasyAcc 10000mAh Power Bank Dual USB Portable Ultra-compact charger External Battery for iPhone iPad mobile phone Samsung Galaxy Smartphones Tablets Google Glass Black + Orange (Personal Computers)