PayPal lets individuals and merchants transfer money via personal computer or Web-enabled mobile phone, with transactions charged to the customer's bank account, credit card, or PayPal balance. The company earns fees mainly from payment transactions, foreign exchange, and withdrawals from foreign bank accounts, as well as on its customer balances and PayPal-branded credit and debit cards. It has more than 160 million users in 190 markets. A subsidiary of eBay, the company accounts for more than half of its parent company's net total payment volume. In 2008 eBay bought one of PayPal's chief competitors, payment firm Bill Me Later, and will add it to PayPal.