Smart Grounding Box

This is a smart device that can easily adjust the grounding strength. It is easy to use and can be connected to any grounded product. You only need to switch the knob to change the grounding strength of any grounded product. Multiple products can be connected to the smart device at the same time. No battery or power source is required. The knob is attached to the internal variable resistor, the resistance value is from 0 to 1meg, and the grounding strength and electrostatic discharge speed can be adjusted according to personal physical condition. You can experience the benefits of earthing at a milder level by simply switch the knob when needed.