Features 1. Electric shock mosquito killer lamp, indoor and outdoor USB charging mosquito repellent, mosquito killer, mosquito trap lamp. 2. The bug repellent device utilizes ultrasonic and electromagnetic wave technology to help reduce insect presence in your home. It is designed to create an environment less attractive to insects, helping to minimize bites and infestations. 3. Ultrasonic technology: This device emits ultrasonic waves at frequencies that may interfere with pest communication and foraging behaviors. By disrupting these activities, it may reduce the ability of pests to navigate and locate targets, potentially decreasing their presence. It is chemical-free and designed to be safe for people, pets, and the environment. 4. Electromagnetic technology: The device emits electromagnetic waves intended to interfere with the sensory and nervous systems of certain insects, potentially affecting their vision and smell. This disruption may cause them to avoid the treated area. 5. Quiet and harmless: Designed with sound-dampening technology to operate quietly, this insect repellent helps maintain a peaceful environment. It operates without the use of chemicals, supporting a safe and quiet indoor space. Specification Material: ABS Style: Charging version Color: Gray, Green Size: 14 x 9 x 9 cm Weight: 200 g Package Include: 1x Insect Repellent Device