This repellent stimulates the sensory and nervous systems of mosquitoes through special elements that are airborne. The pests can then be effectively controlled and kept away from you. It is safe for pregnant women and babies. It is non-toxic and can achieve noiseless mosquito repellent and cockroach repellent effect, giving you a 100% safe and environmentally friendly home. Just plug the electronic pest repeller into the sockets, no battery required and cost little electricity. No need to clean up dead pests. It keeps most types of insects away from your house such as mice, mosquitoes, rats, etc. Great for indoor use, such as home, restaurants, hotels, hospitals, office buildings, warehouses, etc. Power Supply Mode: AC95-250V, 50/60kHz Power: 0.3W Bionic Frequency: 18.8kHz-70kHz Ideal Effect Range: 30m Material: ABS Color: White Size: EU Plug, UK Plug(optional) Product Size: 52 x 52mm Weight: 450g Package List: 1 x Electronic Pest Repeller