100% new design and high quality 
Intelligent Recognition: The bottom of the cup has built-in wireless charging receiving module and heating plate, which can be placed on for heating. Plugging in and put on the cup, there is on a green light, keep your beverage at 55 degC
Wireless Phone Charger: Fast Charging and wide compatibility, The wireless charger is for mobile phones that can be wirelessly charged.
Super safe: Intelligent temperature control sensor, with temperature control chip, overheating protection. Auto-shutoff heating, protect the battery from overcharging, Intelligent identification of other things to stopping work, waterproof surface.
Use suitable mugs: It can be fit most cups, such as glass cups, stainless steel cups, Ceramic cups, etc. for better results, we recommend using a flat bottom glass cup or stainless steel cup. Placing a lid over the mug will also help retain heat. 
Best Gift Choice: Beautiful and compact design, keep the beverages warm all day.it a great gift for your family, lover, or friends on Valentine's Day, Thanksgiving, Christmas, or other special occasions.

Specification:
Product name: wireless charger & constant temperature coaster
Wireless distance: 5mm
Input: 5V/2A
Output: 5W
Constant temperature: 50℃
Material quality: PC stainless steel mirror
Packing size: 23.5*11.6*2.3cm
Product size: 17.5*9.5*1.3mm

Note: Contains usb line

Package Content:
Coaster*1