For all orders exceeding a value of 100USD shipping is offered for free.

Returns will be accepted for up to 10 days of Customer’s receipt or tracking number on unworn items. You, as a Customer, are obliged to inform us via email before you return the item.

Otherwise, standard shipping charges apply. Check out our delivery Terms & Conditions for more details.

Prevent from the surge voltage, over-voltage, over-current and the protection of reversed polarity.

Do the test to make sure the ability of overload resistance and shock resistance, precisely ensure the overload capacity.

Implement the electromagnetic interference resistance to avoid the problem taken place under the condition of complicated electromagnetism environment.

All sensitive chips are from the imported OEM parts, in order to keep the long-term stability.

Shell and power should be connected with earth; don't change the welded parts and connected wires of the outgoing products when customer use it.