The NARWHAL Bluetooth Speaker Lid is designed to provide incredible sound while keeping you hydrated when you’re on the go. Remove one extra item from your backpack with this combined speaker and tumbler lid, designed to fit seamlessly on most 20 oz stainless steel tumblers with a 3.5” top. Listen to your favorite music, podcasts, or the big game with easy wireless connectivity from the speaker lid to your smartphone and other Bluetooth compatible devices These Speaker Lids for 20 oz tumblers feature a rechargeable battery and built-in patented water and dust resistance. Additionally, two tumbler Speaker Lids can be linked together to play simultaneously for the ultimate portable lightweight stereo sound experience. For 20oz Tumbler Bluetooth Connectivity IPX6 Water and Dust Resistance Rechargeable Battery Speakerphone Stereo Sound – Link 2 Speakers Together Universal Fit for Use On Most 30oz Tumblers
