but jeff macgregor really hates waiting for the check.hy he started a company to solve the problem. explain how this works. >> thanks for having me. in bars and restaurants is a uniquely frustrating experience. you're handing your credit card over to a stranger. if you're splitting the bill, you are putting it on five different credit cards. really painful. apps allow you to check in, view your tab in real-time, split the bill with friends, and pay with one press of a button so you never have to hand your credit card over again. >> what is the difference between what you are doing and what opentable is trying to do with payments? >> opentable is going after a more high-end venue. they are using their capability to do reservations. you're typically seated at a table and paying on your phone through the app. it is a feature of an existing app. dash is built from the ground up. we found it is much better and pain in bars and restaurants. if you made a reservation, you have been eating for two hours, so you're not in a rush. at a high-volume