Wal-mart is testing a new checkout system using mobile devices. The new system called "Scan and Go" allows shoppers to use their smartphones to scan items as they shop, then scan the items at a self service kiosks.
Wal-mart says the new app is an attempt to help reduce long checkout lines and reduce labor costs.
The app will not allow shoppers to pay with their mobile devices, but is designed to make scanning quicker and easier. It's being tested by employees before it's available to customers.