Features: 1. Multi-functional temperature settings: This heater offers two adjustable temperature ranges, 30-50 degrees Celsius and 50-80 degrees Celsius, to meet various heating needs in different environments. 2. Quiet operation: This heater features a silent design, creating a peaceful atmosphere so you can work or rest without being disturbed by noise. 3. Compact and portable: This heater features a stylish and portable design, making it easy to transport and place, suitable for workshops, factories, or any workplace requiring efficient heating. 4. Space-saving tilt angle adjustment: This heater is equipped with a convenient 90° tilt angle adjustment function, easily fitting into any room, providing warmth without taking up your valuable space. Suitable for comfortable office corners: This heater is suitable for small spaces such as offices or dormitories, operating quietly while providing effective warmth, making every corner comfortable and pleasant. Specifications: Product Type: Portable Battery Heater; Material: ABS; Battery Type: Compatible with BL1830, BL1850, BL1840, BL1845, BL1815, BL1820, BL1860B series (batteries not included). Package List: 1 x Heater Fan