Get an Amazon Echo Dot (3rd gen) plus a Sengled Bluetooth Color bulb for $19.99 at Amazon. Shipping is free for Amazon Prime members, free Prime trial users, or when you spend more than $25. Otherwise, it starts at $5.99. Other retailers were matching this offer but had set delivery fees. The Echo Dot is the smallest Alexa-equipped voice-controlled smart speaker. All four colors are available at this price. The smart bulb displays millions of colors. It can be controlled with via Alexa with no need for a hub. Sales tax is charged in most states.