Amazon offers the second-generation Amazon Echo Dot in Black for $29.99 with free shipping. (Best Buy, Bed Bath & Beyond, and Newegg all have it for the same price.) That's tied with our mention from three weeks ago as the lowest price we've seen. (It's the best deal now by $5.) It features Alexa voice control, 802.11n dual-band wireless, Bluetooth, and a 3.5mm audio output.