Dual use USB mug cup bottle cooler & warmer

Dual use USB mug cup bottle cooler & warmer 

Specifications: 
1. Working voltage: USB +5 V  
2. Electric current: 5V 0.8~1.3A  
3. Operating current 0.6-.75 Security  
4. Operating temperature: -20 degrees Celsius to 45 degrees Celsius;  
5. USB cable length: 10cm  
6. Dimensions (length x width x high): 13.8cm X 8.9cm X 3.7cm (not including power cord)  
7. Applicable cup type: metal cup with max. 75mm diameter  
8. Highest temperature on matal plate surface:60 celsius, difference 5% 
9. Lowest temperature on matal plate surface:15 celsius, difference 5%(25 Celsius degree test environment temperature) 

NOTE: 
1. This product is only suitable for PC, with USB interface.  
2. Use the product gently to avoid severe vibration, so as not to affect product performance.  
3. This product must be directly inserted in the computer USB interface. Using relevant USB hub and other related auxiliary equipment will reduce performance or damage the equipment.  
4. When it is warming ,must put container on matal plate to avoid damaging this item itself 
5. This product is no match for the houshold appliances as it is powered by the USB interface.  

Package includes: 
1 X Niceshop Beverage cooler & warmer  
1 X User Manual