Voltage Converter 70W 110V/120V to 220V/240V Step-Up&Down Voltage Converter Transformer (CN Standard Plug?

Specifications: Material: ABS Frequency: 55-60HZ Plug type: CN standard plug White: color Max. output: 70W Applicable electrical appliance:<30w Dual channel voltage converter Switch to 110v, input 110/120v, output 220/240v Switch to 220v, input 220/240v, output 110/120v Size: 7.5 x 5cm / 2.95 x 1.97in Weight: 314g Package included: 1 x Voltage Converter Note: Please check the Switch Place at the bottom of the adapter before using it, otherwise you may make a mke and destroy the product! (1) when used in China The bottom switch must be set to AC220V: represent the input voltage of 220V and output voltage of 110V. (2) when used in Canada, Brazil, Japan, the United States and Taiwan The bottom switch must be set to AC110V: represent  the input voltage of 110V and output voltage of 220V.