To spend your bitcoins on Amazon you need to purchase a gift card for Amazon for the desired amount. To do that click on "WITHDRAW" on the top panel, then navigate to "TOP-UP AND VOUCHERS". Select the Amazon country you are ordering from. Enter the Gift Card amount and you will be given a bitcoin price to pay. Enter the second-factor authentication key of your SpectroCoin account. You will receive a code. Now you need to go to Amazon, choose your item and add it to your cart. After you are finished packing your cart, go to checkout and enter your delivery address. When you are redirected to payment methods, choose paying using Amazon Gift Card and enter the key you received from SpectroCoin.