Replacement bluetooth speaker which will fit the following tumblers that are approx 9.94" circumference - these will not fit the skinny bluetooth tumblers from other suppliers

20oz Bluetooth Speaker Tumbler
20oz Shimmer Bluetooth Speaker Tumbler
20oz Glow-in-the-Dark Bluetooth Speaker Tumbler
4-in-1 Can Cooler Bluetooth Speaker Tumbler
14oz Handle Bluetooth Speaker Tumbler

Charging cord and instructions included.  Tumbler, lid and straw are NOT included.

Replacement Tumblers can be found here