Top off your favorite tumbler with this iconic portable Bluetooth Speaker Lid, designed to fit seamlessly on most stainless steel tumblers. Consolidate your packing and stay hydrated while listening to your favorite music, podcasts, or the big game with easy wireless connectivity from the Speaker Lid to your smartphone. These tumbler lids feature a rechargeable battery with built-in patented water and dust resistance. Additionally, two Bluetooth tumbler lid speakers can be linked together to produce lightweight portable stereo sound.
