WEALLNERSSE Bluetooth Wireless Mini Speaker and Sport Bottle (Music Cup), 400mL Stainless Steel Vacuum Cup with Portable FM Radio Outdoor Speaker for Bicycle, Bike, Cycling, Hiking, Camping (Blue)

Works just fine for low level listening and keeps beverages hot or cold for hours. I use it at work every day. Arrived with a few very minor dents that weren't visibly noticeable but I can feel the imperfections when I hold the cup. Overall, I'm satisfied with this item.

I bought this because I am infatuated with speakers and tumblers! I took it out of the box and tried to charge it and realized that the charger doesn’t fit. The plastic around the charger won’t allow it to fully seat...

Good cup but doesn’t work with my iPhone XS. When I realized it didn’t work with any of my other devices, it was too late to return.

I gave it as a gift for my brother...He fishes frequently and this bottle was a game change...

Perfect for everyday use. Good sound.

Really nice and easy to connect

This cup can keep the water warm over night which is pretty awesome. And i think a Thermos cup with a speaker is very cool, eventhough, i dont know why i need it. However, the sound quality is very good.

I am a relatively young, retired minimalist. I don't need a lot of shiny new things, just things the improve my quality of life. Thanks again for standing behind this fantastic little luxury