4-Pack TP-Link Kasa Mini Smart Plug

This plug allows voice control of home electronics via Amazon Alexa or Google Assistant. It requires a 2.4GHz Wi-Fi connection and the Kasa app for setup. Users can schedule devices to turn on and off automatically with timer and countdown features. The price drops from $29.99 to just $18.99. Shipping is free for Prime members or on orders over $35.