Unique Gomadic Portable Rechargeable Battery Pack designed for the Veho Muvi HD VCC-005 - High Capacity Gomadic charger that fits in your pocket Very easy to operate. Simply connect Veho Muvi HD VCC-005, press activation button on pack, and charging begins. Quick start guide included. Specification: Internal Battery (7800mAh lithium polymer), Input port (microUSB), Output Port (Standard USB), Onboard Circuit Design (Veho Muvi HD VCC-005 Specific), Dimensions (2.75 X 3.25 X 0.75 inches), TipExchange enabled (Yes) Integrated circuitry tailors output voltage and charging current to exact specification of the Veho Muvi HD VCC-005 (accurate to 0.1v). Charging kit includes: Rechargeable Lithium Battery Pack, USB input/output cable, Veho Muvi HD VCC-005 Charging Connection, and Battery Pack input connection. Continue to use your Veho Muvi HD VCC-005 for hours OR recharge it on the go without being tethered to a wall outlet