Features: This portable double mode heater providing both heating and cooling functions for versatile temperature control. Featuring a lightweight design with two USB 2.0 charging ports for devices and built in overheating protections, this battery powered heater ensures safety and convenience in any setting. Ideal for enthusiasts, construction professional, homeowners, and outdoor adventurers who require adaptable heating solution on the go. Perfect for use in garages, workshops, homes, campsites, or any environment where efficient portable heating or cooling is essential for comfort. With energy efficient heating technology, ABS and metal construction, and easy operate, this heater delivers consistent performances across all season for long lasting reliability. Specifications: [Component]: ABS, metal [Product size]: about. 11x5cm/4.33x1.97in [Pattern]: 4 pattern optional [Applicable battery]: 18V/20V battery (NOT Include) [Interfaces]: Double USB A 2.0 power supply interfaces Package Includes: 1pc Heater cooling Fan note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.