Features: Purify air, remove smell and the fetid odor inside car, keep it well-ventilated. Easy to install, just clip it on your car side window and stuck rubber strip into the window top edge. Powered by solar power, working as it is under the sun light, with only 0.3W, low consumption. Protect your car appliance or furniture from corrosion or damage due to high temperature inside car, prolong its lifespan. Notes: 1. No rechargeable battery built in, can't be charged in the sun repeatedly. 2. Kindly note that your car window may not be closed tightly if there is anti-pinch installed already. We suggest putting some glue into the rubber strip to fix it and the air vent fan, or if you have other ways to fix that would be great. 3. It doesn't work on dark tinted windows or rainy days. 4. It was designed for ventilation and doesn't have strong wind speed to be a real fan to cool your car quickly. 5. It works only under the sun light(If the sun light is weak, it may not work), please choose the window which receives the most sunlight. Specifications: Type: Auto Air Vent Material: Plastic + Monocrystalline silicon Quantity: 1pc Item Color: Black Power Supply: Solar Power: 0.3W Size: 15*11*6cm/5.9*4.3*2.4"(L*W*H) Strip Length: Approx. 79cm/31.1" Net Weight: 0.302kg/10.7oz Package: 1*Car air vent 1*Strip 1*User manual in English