BESTEK Converter for 110V Devices: Patented technology converts voltage in different countries including Australia (100-240V, 50/60Hz) to US/Japan voltage (110V, 60Hz), ideal for charging all kinds of devices Charges 7 Devices Simultaneously: 4 USB charging ports with a combined 6A output, 3 AC sockets support Max 250W power. [*Note: USB outputs are completely isolated from the AC power to prevent all your devices from being damaged] 24-month Warranty & Safety Guaranteed: NRTL safety tested and upgraded hardware provides complete protection for you and your devices. Comes with over-current, over-load, over-heat and short-circuit protections Worldwide Use: 1 EU power cable and 3 international adapters (US/UK/AU plug) support outlets in Australia, North America, United Kingdom, Continental Europe, Japan, China, more than 150 countries all over the world Travel Design: Compact size (6x3x1.57 inches) with 5 foot detachable power cable makes this power converter easy to pack and take anywhere you go