Amazon pushing Dash Button

Trying to snare even more of its customers’ routine purchases, Amazon.com introduced new gadgets Tuesday that let customers buy frequently purchased items with a press of a button.

The new Dash Button is a pocket-knife-sized device that’s dedicated to a specific product, such as Tide detergent, Gillette razor blades or Gatorade sports drink. The gadgets, which come with AAA batteries and Wi-Fi chips, connect to Amazon to let customers buy those specific products instantaneously by tapping the button on them.

Customers will be able to attach a button, via adhesive or a hook, to, say, their washing machine or bathroom vanity. That way, when they run out of detergent or razors, they can press a button to restock.

Amazon launched the service Tuesday, letting U.S. subscribers of its $99-a-year Prime service request invitations. The company hasn’t said how many customers will be selected. Those who are, will be able to order up to three buttons, which Amazon will send at no cost. It will send buttons in the next few days.

Customers will set up each button using the Amazon shopping app on their iPhone or Android device to connect the button to their home Wi-Fi network. The service won’t be available at launch for customers with Windows phones.

Users will be notified on their phones each time an order is placed, and will have a brief amount of time to cancel the order if it was inadvertent.