For in-store pickup only, Kmart offers the Boombotix Boombot Bass Station Bluetooth Speaker with 15-watt Subwoofer Dock for $20. That's tied with our mention from last Black Friday and the lowest price we could find by $6. It features a 2GB flash drive for music storage, Siri and Google Voice controls, water resistance up to 3 feet, dual-amp stereo sound, and a 15-watt subwoofer dock that also acts as a charging station.