1、Speaker Water Bottle Material: Our insulated music cup is made of stainless steel, which is durable, strong and wear resistant, and will not rust. 2、Music Tumblers: Each stainless steel speaker tumblers has a detachable wireless speaker at the bottom, and the LED light will flash with the rhythm of the music, you can enjoy music and relax while drinking water. 3、Vacuum Thermal Cup: The music cup adopts a vacuum double wall design, which has a good thermal insulation effect. Keep hot drinks warm for up to 6 hours and cold drinks for up to 12 hours with this insulated coffee travel mug. 4、Conical Design: With a special conical design, it can be installed in the car cup holder, and it is convenient and portable to use when going out. 5、Cleaning Method: When you clean the cup, unscrew the speaker to separate it from the cup, the speaker cannot be washed with water and will be damaged. Do not microwave.