The inner body of the cup is newly added with 304 stainless steel, 3 layers of heat insulation refuse to be hot At the same time, long-term thermal insulation and cold insulation, strong and durable Scratch-resistant, wear-resistant, not easy to slip hands, not easy to change color Precise temperature display, cold and hot water at a glance After long press the screen to trigger the TDS function, invert the water cup for 5 seconds to automatically detect purity APP can freely set 15 drinking water reminding alarm clocks, regular reminders are more intimate IPX7 waterproof function Bluetooth 5.0 smart chip, top adsorption magnetic charging, lightly charge to charge, once fully charged, can be used for 30 days Material: stainless steel +PP+silicone Capacity: 450ml Dimensions: 224x68x68mm App: VSITOO App