Feature: 1.The power switch display - LED lights to indicate that it is working. 2.Automatic timed spraying 3.Free control of spraying time (5, 10, 15, 30 minutes) 4.Three-stage sensing function to adjust the spraying range (day, night, 24 hours) 5.Low energy consumption, one-to-one battery can be used for 6-8 months, you can set the working time at will, a bottle of dew can be used 3000 times or more, one-time investment for long-term advantages. No electricity area can also be used. of use: Instructions: 1.Open the case and turn the power switch to the "OFF" state. 2.Load two 1st batteries according to the battery direction 3.adjust the spraying time (5-30 minutes) that is sprayed every 5-30 minutes 4.adjust the sensor switch a, Day: Spray every 5-30 minutes every time there is light, not working when there is no light. b, Night: Spray every 5-30 minutes when there is no light, and it will not work when there is light. c, 24H: spray every 5-30 minutes 5.put in the spice jar, close the shell 6.Turn the power switch to the "ON" state (this will automatically spray, do not point the nozzle at the person's face) Precautions: 1.Place the aerosol dispenser high, the effect is better 2.It is forbidden to spray on the human face 3.It is forbidden to keep the aerosol dispenser close to the fire source. (If the machine starts to press out the after using it for a period of time, please check) a. Has the spice jar been used up (about 3,000 sprays per can) b. Is it necessary to replace the battery (Every two sections of the first battery available for about three months) Material: ABS Color:Black Packing included: 1pcs x Light sensor aerosol dispenser Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.