MC0292W Features Specially designed for HTC ONE M8   Quickly and effectively solves the low power problem for your phone while on-the-go Keeps your HTC ONE M8 always powered Supports over-current， over-voltage， over-charge， over-discharge and short circuit protection Comes with faux leather protective case with card slots  Lightweight and compact size for ease of carrying A must-have item for travel and going on business    General Specs Type Backup Battery Compatibility HTC ONE M8 Capacity 3800mAh Input 5V 0.5A Output 5V 0.8A Package Details Weight: 142.31 g Size: 19*9.8*2.5 cm