Duration of battery life: 3-6h (inclusive)

Rated power: 2200W

or you can easily add a rope to make an announcement

Style: smooth

Smoke Removal Air Purification Ashtray, Practical Automatic Purifier, Portable Gadgets for Car Health and Medical Products Duration of battery life: 3-6hOverview: 1. Durable. Made from very durable ABS plastic. Easy to use, and easy to clean up. 2. A creative ashtray with an air purifier releases negative ions and air, multipurpose. 3. Convenient. Powerful, one button open, low, efficient, system 3600 RPM. 4. The ashtray tray is specially designed with four small grooves for fixing. cigarette butts, lightweight. Small size, easy, and convenient to carry. Product information: Noise: less than 36dB