1) Please contact us for much quantity to get some discount because the product has wholesale price and the shipping cost for big quantity is cheaper too.
2) You can leave a message in your order if you have any requirement such as the voltage and plug. because we only know Europe is 220V /EU plug, USA /Mexico /Japan /Canada is 110V /US plug, Australia is 220V /AU plug.
3) If you need us to declare lower value on the shipping value to less custom duty, please leave a message in your order. or else we will declare the real value.