Features: This portable heater offer rapid heating without USB ports, maximizing efficiency for instance warmth and comfort in any setting. Featuring a compact ABS body, two temperature settings (30 50°C and 50 80°C), and an intuitives knob control, this electric heater ensures durability and user friendly operations. Ideal for office workers and students who need personally heating to stay warm and focused during work or study period. Perfect for home offices, study rooms, or small spaces requiring quick and portable heating solution on the go. Enjoy consistent, cozy warmth with its efficient design, making it a dependable electric heater for everyday use in cold environments. Specifications: Materials: ABS Power: 170W Temperature ranges: 1st gear 30-50℃, 2nd gear 50-80℃ Compatible: Suitable for 20V lithium- batteries, suitable for DCB201, DCB203, DCB204, 205, DCB206, DCB207, DCB208. Applicable objects: Suitable for 20V series (including 60V voltages) lithium- batteries. Package Includes: Heater bare metal without USB note: Stay away from damp and flammable items, and avoid using it for long periods continuously.