Cortunex Heat Changing Mug - 11 Oz Ceramic Color Changing Coffee Mug with A Funny Blue Sleepy Smiley Face - Cute Heat Sensitive Magic Mug with Fun Gift Box

Very cute and definitely worked as described.

Got this for a mug exchange at work. I think it will go over good. Good quality and comes in a cute box

This was a gift for a nine-year-old boy. The color changes very quickly and he loved that it went from grumpy to happy.

Gave this to my 10 year old at Christmas time and he thinks it is a riot! Watching it "wake up" when his tea or cocoa goes in it is highly entertaining for all of us. Things to note: there were some small chips in the paint on one side so one of the eyelids has a white spot in it when "sleepy." The interior stains easily.

Really cool coffee mug; my girlfriend totally loved it. Wonderful product, good quality, beautiful color effect, and it precisely matched the description. The item was delivered on time, entirely met my expectations, and represents excellent value for money.

Made a nice gift

This is one of those items, that depends the batch it is the quality of the product. My works like a charm. I got the one with black and turn yellow when I put coffee on it, everyone that see it thinks its hilarious. For the price you can not complain.

You have to hand wash these, and even hand washing them, the picture comes off super easy. Also, it does not actually turn white. You can see the picture, but it turns more of a brown/gray color, not white.

La tasse est mignonne mais le contenu doit être vraiment très chaud pour que ça fonctionne et malheureusement aussitôt que ça refroidit un peu « la magie » disparaît.

I was skeptical after reading reviews but took a chance and glad I did! It's for a gift but I tested it out first and the mug changes just as it should and it makes a great gift!

Mug came in broken pieces after the long waiting.

....muy recomendable puse a cantar agua a fuego medio, cuando empezó a verse burbujitas en el fondo de la ollita, apague la estufa y al agregar el agua caliente cambio al instante empezó a cambiar de color a la cara chiflada, pasados 3 segundos, cuando terminé mi café empezó lentame a enfriarse la taza cambio el color a negro con la cara enojada, ya fría la taza la lave con agua fría con una esponja suave... ...me encantó 😍🤣😋☺️

Well this was a gift and the surprised face from my son, it was well worth it .. my son loved it. I bought it for him as he studies at home, brings a little smile to his face at coffee break