Features: Outer solar panels, multi-angle adjustable, can effectively absorb sunlight Three duct and three motor design improve the exhaust speed effectively Built-in high capacity rechargeable batteries, keep the motor smooth running at a high speed. Solar and battery switch control, can control the solar battery used separately Solar panels can be used to charge batteries directly by solar irradiation. Sustainable use in the rainy day, can eliminate harmful materials such as smoke inside the car Remove harmful gas from the car and keep the air clean. Remove the hot gas from the car and reduce the temperature in the car. Specification: Type: Solar powered vehicle exhaust fan Fan number:3 Material: ABS Voltage: 2.4 V Rotate speed: 3500 rpm Continuous working time: 10 hours Solar panel power: 4 W Current: 1600 mAh Built-in batteries capacity: 2AA*1200mAh(included) Color: White,black Solar position:outside window Package included: 1PC *Solar powered vehicle exhaust fan Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement.