The Kettle has a new ventilation valve designed to boil water with the lid closed open the valve preventing hot water overflow and sprayed onto body The cup is leakproof with upgraded seal and tight lid Safety Material Foodgrade 304 stainless steel doublelayer insulation PBA free which make sure that the water boiled must be safe Its very suitable for family outdoor travel you can enjoy hot tea and coffee anytime and anywhere in the car 350ml capacity suitable for most car cup holders You no longer need to use electric kettles in public places use your own private kettles and have a healthier lifestyle When water get boil it will automatically turn off the power The 12v car kettle will take about 15 minutes to heat up to boiling which brings convenience to your life