1Smart vacuum cup, with LED display to prompt realtime water temperature by touching, different temperatures show different colors. 2Builtin 200mAh polymer lithium battery, USB charging, magnetic charging design, efficient charging, saving time and worry. 3Liner stainless steel material, good heat preservation effect, sturdy and durable, not easy to rust, not aging, long service life. 4Flashing reminder for drinking water, silent care does not disturb, flashing reminder every 2 hours after the drinking function is turned on. 5Can be used as great gift for festivals, holi, birth, christmas, thanksgiving and business gifts to your friends and families. Item Type: Thermal Cup Material: PP+PC+Stainless Steel Color: As shown in the picture Size: Approx. 22.5x6x6cm / 8.9x2.4x2.4in Weight: Approx.343g/12.1oz Voltage: 5V Battery: Polymer lithium battery 200mAh Capacity: 440 ml 1 x Thermal Cup 1 x USB Cable 1 x Instruction Manual 1. Please allow 12in error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.3. Please note that the new type and old type of this product will be sent randomly,and make sure you will not mind before ordering.