Overview: 1. This product can be turned on or off manually, which is simple and convenient. 2. The batteries are interchangeable and convenient. 3. Three flashing modes, which can be set and selected arbitrarily. 4. The continuous lighting time is up to 40 hours, the lighting time is 49 hours, and the wiring harness has a long service life. 5. The material is environmentally friendly and non-toxic, harmless to pets.