1. The Angle Can Be Adjusted, The External Solar Panel Can Adjust The Angle According To The Needs, And Absorb Sunlight Effectively. Solar Power Supply, Energy Saving And Environmental Protection, Does Not Increase The Power Consumption Of The Car. 2. A Healthy Car Environment Can Effectively Promote Air Circulation, Allowing You And Your Family To Have A Healthy Space. It Can Also The Aging Of Objects In The Car. 3. Ventilation fan is triple vent, Which Can Effectively Increase The Exhaust Speed, And The High-Efficiency Triple Turbo Exhaust Fan Is 4500 Rpm. 4. Easy To Install, Install The Exhaust Fan On The Window, Manually Adjust The Tape, Lift The Window To Complete It. There Is No Need To Install Wires, And The Vehicle Will Not Be Damaged. It Can Be Used Continuously In . 5. Note That This Product Is Just A Car Fan And Cannot Be Cooled Directly. Effectively Promote The Air Circulation Of The Car And Keep The Air In The Car . Speed:5000 Rpm Voltage:2.4V Whether With Switch:Yes Is There A Rechargeable Battery:Yes Solar Position:Outside The Car Window Battery Continuous Working Time:About 5 Hours Solar Power:15W Solar Charging Indicator Light:Yes Current:1600MAH Built-In Battery Capacity:2AA*1200MAH Colour:Black Material:ABS Size:220mmx65mmx110mm Package Contents: 1 * Car Cooling Fan 1 * Chinese And English Manual 1 * Data Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.