Features:

Cool & Warm, keeps your cold drink stay cool longer, and make warm beverage keep warm longer at hand.

Lightweight and compact size, easy to carry and storage.   

Suitable for heating or cooling beverage, cola, cans, coffee and other drinks.

Specification:

Material: ABS

Color: White, Black
Type: 1:Black+USB Cable+Power Charger  

         2:White+USB Cable+Power Charger

Voltage: 5V, 9V

Suitable flat metal cups: ��75mm Dia.

Power Supply: USB / Adapter

Heating / cooling temperature:

USB: 8-10��(Cooling)   65��(Heating)

Adapter: -2-3��(Cooling)  105��(Heating)

Package Included:

1 x Cup Coa-ster 

1 x USB Cable

1 x Adapter(Only 9V Model Has)

1 x User Manual