Features: Our electric heating lunch box is 45W power, rechargeable lunch box for office work/camping/school/dormitory/travel, enjoy your delicious food easily. Built-in 16000mAh strong power supply lithium-batteries, about 8-10hrs charging, thermal insulation 5hrs, 5 gears heating, long-lasting working. Portable large capacity 1000ml satisfy your daily demand, easy water washing, sealing cover and not easy to leak. Selected food-grade PP-plastic, 304 stainless steel, high-temperature resistance, environmental protections and safe use. Large digital display screen, USB direct charging, with charging/heating indicator light, convenient for you to check the status, is the perfect gift for children, husband, girlfriend, boyfriend, friend and family. Specifications: Main Material: PP-Plastic+304 Stainless Steel Size: Approx. 23.6x13.3x9.6cm/9.29x5.23x3.77inch Cable Length: Approx. 1m/3.28ft Model: FH-1 Heating Temperature: up to 57℃ Capacity: 1000mL/1L Chcrge: USB Charging Battery-capacity: 16000mAh Power:45W Charging-time: 8-10hours Function: thermal insulation 5hours Heating(5 gears): 20minutes, 30, 40, 50, 60 minutes Output: 8A Package Includes: 1x Electric Heating Lunch Box 1x USB Charge Cable 1x User Manual note: The heating function cannot be used when charging, please use when fully-charged. Please allow 0-1cm error due to manual measurement. Please allow for slight color difference due to different display resolution.