This 20oz tumbler has a wireless bluetooth speaker on bottom! It does screw off to hand wash tumbler. It comes with a charger, so simply charge it up and go! Features include:
-Vacuum insulated stainless steel
-Speaker can get wet but DO NOT SUBMERGE
-Comes with directions and USB charger
This design is also available on regular sublimation tumbler styles (no speaker).
I recommend hand washing and make sure to unscrew speaker before washing. If you drop tumbler, speaker may dent. Please be careful! Currently ready to pick up or ship in 5-7 business days.