Welcome to the store! 1、Made of good quality ABS, sturdy, wear-resistant and durable. 2、Portable and lightweight, easy to carry and store. 3、Dual purpose, can be used to make drinks cold or hot. 4、Supports direct power supply from computer via USB interface, convenient to use. 5、Practical product for you to have cold drinks in summer and hot drinks in winter. Features: Made of good quality ABS, sturdy, wear-resistant and durable. Portable and lightweight, easy to carry and store. Dual purpose, can be used to make drinks cold or hot. Supports direct power supply from computer via USB interface, convenient to use. Practical product for you to have cold drinks in summer and hot drinks in winter. Material: ABS Color: Black Voltage: 5-9V Rated Power: 5-8W USB mode cryogenic temperature: 8 to 10 ℃ External power supply cryogenic temperature: -3 to -2 ℃ USB mode heating temperature: 65 ℃ External power supply heating temperature: 105 ℃ Power Consumption: 5V 800mA (USB cooling), 5V 1000mA (USB heating), 9V 1500mA (external power cooling), 9V 1600mA (external power heating) Size: Approx. 15 * 15 * 5cm / 5.9 * 5.9 * 2in USB Cable Length: Approx. 1m / 39.4inch Weight: Approx. 450g Package List: 1 x USB Coaster 1 x USB Cable 1 x Manual Note: It only supports direct power supply from 5V 2A USB charger, if you need to connect it to external power supply, it needs a power adapter (not included). Your 100% satisfaction is our top priority. We will provide you with the best service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will give you the best solution!