1. Press the switch by hand, the kinetic energy is converted into electric energy, say goodbye to the trouble of replacing the battery, environmental protection...
1. Buttons generate electricity by themselves, no battery is required, and the generator can be turned into electricity by pressing a finger. 2. Strong penetrating...
1. Buttons generate electricity by themselves, no battery is required, and the generator can be turned into electricity by pressing a finger. 2. Strong penetrating...
1. Buttons generate electricity by themselves, no battery is required, and the generator can be turned into electricity by pressing a finger. 2. Strong penetrating...
1. Buttons generate electricity by themselves, no battery is required, and the generator can be turned into electricity by pressing a finger. 2. Long distance...
1. Buttons generate electricity by themselves, no battery is required, and the generator can be turned into electricity by pressing a finger. 2. Long distance...
1. Buttons generate electricity by themselves, no battery is required, and the generator can be turned into electricity by pressing a finger. 2. Long distance...
1. Buttons generate electricity by themselves, no battery is required, and the generator can be turned into electricity by pressing a finger. 2. Long distance...
1. Buttons generate electricity by themselves, no battery is required, and the generator can be turned into electricity by pressing a finger. 2. Long distance...
1. Buttons generate electricity by themselves, no battery is required, and the generator can be turned into electricity by pressing a finger. 2. Strong penetrating...
1. Buttons generate electricity by themselves, no battery is required, and the generator can be turned into electricity by pressing a finger. 2. Long distance...
1. Buttons generate electricity by themselves, no battery is required, and the generator can be turned into electricity by pressing a finger. 2. Strong penetrating...
1. Buttons generate electricity by themselves, no battery is required, and the generator can be turned into electricity by pressing a finger. 2. Strong penetrating...