Add-on Eligible for Free Shipping When Buy Together with Keyboard

For all the products, or add-ons below, when buying together with any Keychron keyboard, you don't need to pay a shipping fee for the add-on/s below, but you still need to pay a shipping fee for the keyboard.

The reason that we can provide this benefit is that the shipping company will offer a discount to us when we ship the keyboard and add-on/s (not included Carrying Case) together in a parcel.