This $20 gadget will completely change how you use Alexa at home

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ZDNET's key takeaways

• Amazon made the Smart Dimmer Switch available for pre-order.
• This switch is battery-powered with four individually programmable buttons that can control smart home devices, run routines, or control music.
• The dimmer switch only costs $20 and is compatible with Alexa-enabled devices.

Amazon quietly made its Smart Dimmer Switch available for preorder for $20, with orders shipping on October 31 this week. The company introduced this switch during its Devices and Services event in September, although it hadn't provided specifics on when it would be available to the market.

The Smart Dimmer Switch is a wireless remote under the Amazon Basics brand that works with Alexa. The switch features four buttons that can be programmed individually to perform almost any action that Alexa can do. The buttons can control specific smart home devices, groups, run ...