Music Tumbler

This tumbler has a heavy-duty stainless-steel body with a leak-proof lid and a built-in Bluetooth speaker for wireless audio. It features a rechargeable battery with long playtime and a sleek profile.

• The description claims the tumbler is built to last through everyday use.
• The description claims the tumbler keeps drinks hot or cold for hours.
• The description claims the tumbler has a built-in Bluetooth speaker.
• The description claims the tumbler has a long battery life of up to 10 hours.
• The description claims the tumbler has a compact, cylindrical shape.
• The description claims the tumbler can flash lights with the rhythm of the music.