Attractant lights and strong inhaler: This indoor fly trap emits a blue light which can attract insects. The strong airflow of the bug killer eventually will draw in the annoying insects. You will see the effects of this fly mosquito killer after a few days. Convenient: A USB cable is available to make a portable mosquito trap indoors. The cable can be connected directly to any of the ports such as a power bank, laptop or computer. You can plug the insect killer anywhere in your house. Safe and gentle fly killer: The indoor mosquito and fly killer does not contain toxic chemicals or chemicals and uses attractive light bulbs and fan to kill the insects. The fruit fly trap will allow the insects to dry quickly after they have been caught on the bug killer's sticky boards. Large coverage: The gnat trap can be used throughout your home including in the bedroom, kitchen, living room, and bedroom. The soft light of the fly trap will not disturb your sleep.