* Double Wall Insulated: Keeps drinks cold or hot for 6-12 hours bringing you much convenience.
*Music tumbler cup: Each stainless steel speaker tumbler cup has a detachable wireless speaker in the base you can enjoy music and relax while drinking your favourite beverage with this wireless music tumbler. * Notice: When you wash the speak tumbler unscrew speaker to separate it from the cup speaker cannot be washed, it will be damaged. Do not microwave.
