Promate 5000mAh Back-up Battery with Universal Charger for all...

Wireless Sound Bar with Custom LED Lights Show
Retractable design to fit all Lithium-ion battery types
Adjustable metal prongs to fit most mobile phone and camera batteries
Automatically detects positive and negative poles of Lithium-ion batteries
Charges both AA and AAA rechargeable batteries
Charging Solutions Simplified
USB port to charge all 1A USB chargeable devices
Short-circuit and over-charging protection
Compact, lightweight and portable design
TECHNICAL SPECIFICATIONS
Battery Type: Li-Polymer
Battery Capacity:5000mAh
Input: DC 5V, 2A
USB Output Rating: 5V DC 1A Max
Input Type: Micro-USB
Made from ABS + PC