Keeps your hot drink at the exact temperature you prefer. Adjustable Temperature Control Mug. 1.5 Hours battery life on a single charge. LED intelligent temperature display. Easy to clean and safe to handwash. Material: Stainless steel 304 + PC + Ceramic Capacity: 300ml Waterproof grade: IPX6 Battery type: 7.4V/3200mAh Power input: DC12V / 1.67A Max 18W QC3.0 / PD20W Fast Charge Temperature Range: 50°C – 62.5°C