A. Suitable scenarios: It is suitable for use when traveling anywhere. B. Functional parameters: - This is a dual-channel voltage converter that can convert from 110/120V to 220/240V and also from 220/240V to 110/120V. - It is equipped with an AC117V - AC230V switch. - The maximum load power is 100W. - One can obtain the voltage needed by using this adapter. C. Appearance color: White. D. Operating instructions: One needs to check the position of the switch at the bottom of the adapter as follows: - When the switch is set to AC117V, the input voltage should be AC110/120V, and the voltage converter will output AC220/240V. - When the switch is set to AC230V, the input voltage should be AC220/240V, and the output will be AC110/120V after conversion. E. Precautions: - Incorrect operation may cause damage to the converter, and we are not responsible for any incorrect operation. - Please unplug the plug if not using the converter. F. Package contents: It includes 1 power converter. G. Other instructions: Light and different displays may cause slight color differences between the item and the actual product. A measurement error of +/-1 - 3 cm is allowed for the size.