Today, Amazon announced its second-generation Amazon Echo Dot, which costs $49.99 with free shipping. That's already $40 less than the previous generation's list price. Even better, you can buy six Echo Dots for $249.95 via coupon code "DOT6PACK" ($50 off, $41.66 each) or 12 Echo Dots for $499.99 via coupon code "DOT12PACK" ($100 off).

This voice-controlled device uses Alexa to play music (via Prime Music, Spotify, Pandora), control smart home devices (via Samsung SmartThings, Wemo, Nest), and do lots of other cool stuff (order a pizza via Domino's, order car service via Uber, play Jeopardy). It features 802.11n dual-band wireless, Bluetooth, and a 3.5mm audio output. It's scheduled for release on October 20.