Maxibay via Amazon offers the KKUP2U Upgraded WiFi Smart Plug 4-Pack for $38.99. Coupon code "GJ6K27BV" knocks it to $29.24. With free shipping, that's tied with our mention from three weeks ago, $10 off, and the lowest price we could find. These plugs work with Amazon Alexa and Google Assistant. Deal ends July 14.

Note: The same code drops the single plug and 2-pack to $7.87 and $14.99, respectively.