Since this is an online business, you need a mobile phone, internet connection, email address and laptop or computer desktop. Also it may become needed to have a credit card or debit card once you create an online payment processors.
Payment processors like PayPal, Liberty Reserve, SolidTrustPay or PayZa are the tools to receive your earnings online. But you need to convert your funds in your online payment processors into real. You will only receive your online currency (fund) in your online payment processors if you will verify your account using debit card or credit card.