feature 1: Physically kill mosquitoes, non-toxic, non-polluting, harmless to health. 2: Bedroom, living room, garden, office, hotel, dining room, etc. can be used anywhere. 3: Package includes: 1 x USB Mosquito Killer Lamp (without plug) two types 1. Rechargeable 2. Basic (USB charging, keyless switch) how to use 1. When the mosquito killer lamp is working, turn off other light sources in the room. The darker the light, the better. 2. It is best to put the mosquito killer in a dark and airtight room 2-3 hours before going to bed. Specifications: Product attributes 1: [Product Category]: Electric Mosquito Swatter, Photocatalyst Mosquito Killer Lamp, Inhalation Mosquito Killer, Sticky Mosquito Killer Lamp, Electric Mosquito Killer Lamp, Mosquito Repellent Killer, UV Mosquito Killer Lamp: 2: [Applicable area] 20-50 square meters 3: [Model] 888 4: [shell process] electroplating 5: [Battery capacity] 1001MAh (inclusive)-1600MAh (inclusive) 6: [battery time] 0-4 hours 7: [Rotation angle] cannot be rotated 8: [Charging time] 5-8 hours 9: [Anti-mosquito and mosquito-repellent method] Light wave to attract mosquitoes + electric shock to kill mosquitoes Package Included: 1* Mosquito Killer Lamp+1*Data Cable