Enjoy your favorite drink with music on your weekend camping trips or backyard BBQ’s in this DubStein Drink Holder & Speaker. DubStein is a 2 in 1 beverage holder that looks like a beer mug with a 360° stereo sound Bluetooth speaker system. This Bluetooth speaker holder wirelessly connects to your smart gadget to stream music, internet radio or take phone calls. It is equipped with a rechargeable battery and keeps you going for 15 hours.