Easy to Use - Plug and play. Get to work immediately to efficiently catch flies, fruit flies, mosquitoes, moths, gnats, and more house flies. Effective & User Friendly - Attracts insects with UV LED light with their phototropism, strong and safe sticky trap, nowhere to escape. 24/7 Continuous Work - Easily attracts work continuously 24/7 for a safe and fly-free space. This fly trap indoor is better to work in the dark. Quiet Operation - This fly trap indoor provides a quiet and comfortable sleep environment for your family. Indoor Use- Easy to setup, allowing you to plug it on the wall outlet anywhere in home and also equipped with replacement cards to change for user convenience. Package Details - 1 plug-in fly trap, 3 pair of glue cards. Reusable and glue cards can be purchased separately.