Specifications:

Input: 100V-240V AC. 50/60Hz, 300mA
Output: 5.0V-- 1A / 2.1A (For USB * 4)
OFF Load: ≤0.5W
Plugs: US/EU/UK/AU plug
Charger size: approx. 7.6 * 5.5 * 3cm / 3 * 2.2 * 1.2in (without plugs)
Charger weight: 87g / 3.1oz
Total weight: 150g / 5.29oz

Ultra compact 4 port USB AC travel adapter
Power or charge up to 4 of your USB powered devices with the proper USB
cables (not included)
Perfect for your iPod or Cell Phone, just attach the proper cable, plugit in and charge your device
Compact size and international plug adapters included
Provides standard USB 5V at up to 2A (max)
AC plugs can be changed easily in seconds by pressing the button at bottom of the main unit for unlocking the plug