Amazon Dash Buttons were first introduced back in March and were part of an invite-only trial. I guess the trial was a success because they’re now on sale for $4.99 a piece to Prime Members. Dash Buttons are small wifi enabled buttons which you configure to instantly order a specific product from Amazon whenever the button is pressed. Currently there are 18 buttons for a variety of everyday items like laundry detergent, Gatorade, coffee, and razor blade refills. You use the Amazon app on your smartphone or tablet to configure the buttons and select which specific product you want each button to order. Once a Dash button is pressed, additional presses will not produce additional orders until the first order has arrived.