Amazon has put the Echo Flex on sale for $12.99. This is the most comact full fledged Echo model that Amazon sells. At this price it is just shy of 50% off and $3 above the lowest price that it has ever been. The Echo Flex’s tiny speaker isn’t going to sound great for music, but it’s perfectly sufficient for communicating with Alexa. On the bottom of the Echo Flex is a USB port that can be used to charge your phone or other devices. The USB port can also accept one of several Echo Flex accessories, including a Motion Sensor, Night Light, or Clock. Each accessory is “smart” in that it can be controlled by or incorporated into Alexa commands and routines.