PayPay is “a trusted brand in the online payments industry with more than 100 million customers around the globe and years of proven payment innovation,” according to David Marcus, PayPal’s VP of mobile.

PayPal introduced its new small business mobile payment system, rivaling Square and staking its place in a still-developing industry. The thumb-sized credit card reader, dubbed “PayPal Here,” plugs into a smartphone headphone jack for swiping credit cards. With a multi-purpose interface, the program allows retailers to track check or cash payments.

The PayPal Here dongle plugs into the iPhone via the headphone jack on the top of the device. A small wing folds down to stabilize the PayPal Here reader when users swipe their card. Using the accompanying PayPal Here app, vendors can enter in the price, then had the iPhone over to the customer, who can add in a tip (when applicable), sign their name, and enter the mobile number where they would like the receipt for the purchase sent.  The device is already available in the U.S., Canada, Australia and Hong Kong.