Saver Portable USB Heater Self Stirring Tea Milk Cup Coffee Mug Winter Vacuum Flasks

Description: 1. In-set lithium-ion battery, can be recharged repeatedly. 2. In-set heating and warming function. 3. Automatic stirring function. 4. Compatible with PC hardware. 5. With battery storage test function. Features & details: 1. Voltage: 3-5V 2. Power: 3W 3. Nominal volume: 130ml 4. Color: Silver, black, brown 5. Product dimensions: 64x64x152mm 6. Package size: 70x70x155mm Usage: 1. Heat: Heating function 2. Test: Test the battery storage 3. Off: Turn off the device 4. Stir: Stir the liquid in mug Note: To restart charging, connect the USB interface on PC with the DC interface on mug through the USB cable. Cautions: 1. Please recharge when the battery storage is low. 2. Do not leave the USB coffee mug with high humidity or under sunshine. 3. Do not leave the USB coffee mug in intense magnetic area. 4. Please avoid shaking the USB coffee mug. 5. Turn off the product after using. 6. Do not keep the USB coffee mug in refrigerator. Package included: 1 x USB Coffee Warmer 1x USB Cable 1X Instruction Manual