Ehotbill Cute USB Powered / AA Batteries Car Shaped Auto Cigarette Smokeless Ashtray Air Purifier Durable Model Car Shape Smokeless Ashtray (Yellow) Simple to use, just plug the supplied USB cable or install batteries. Cute design, it's a decoration in your car, home or even on your desk. Use it to decrease smoke and odors around the desk. Keeps your home, car or office environment clean and smoke free Built-in fan ensures fast and effective absorbing of smoke.