For listening to music then you'd have to use your Bluetooth headset, but it's a small inconvenience for the ability to take credit and debit card payments on the go. Best of all - the PayPal Here dongle is free, looks stylish, and charges 2.7% per card transaction vs 2.75% for Jack Dorsey's Square.
takes checks and you can invoice with the app, as well as track your cash payments, for a well-rounded mobile experience. You can sign up for the dongle on PayPal Here's dedicated website, and will be notified when available. In the meantime, watch the service demo below.