USB Plug In of Intelligent Warming Cup Cushion CLICK&BUY
https://shopping.wed2c.com...
Product information:
Product Name: Digital warm roller coaster
Rated input: DC5V = 2A
Material: ABS
Battery capacity: USB plug in
Function selling point: Level 5 temperature regulation, remind to drink water
Color box size: 162 * 122 * 22mm