Periodic Table Design Portable Power Bank USB

A perfect present for scientists and students. This portable USB charger keyring is a handy accessory for festivals, camping and traveling.
Power bank measures: 9cmx 2.5cm
20cm long micro-USB cable
USB output for charging a variety of devices
Approximately one full phone charge (may vary due to model and age of phone)

Technical specifications:
Input: DC 5V-800mA
Output: DC 5V - 1000mA (max)
Capacity: 2000mAh