They work to prevent the harmful effects of emissions in the living environment produced by electronic devices such as computers, mobile phones, televisions, microwave ovens and electrical installations. They protect us from exposure to mobile phone base stations, electrical transformers emissions. They also protect us from the negative and harmful influences of others. They can be used at home, in business premises and cars. Through their action, they help reduce problems such as fatigue, lack of energy, lethargy, depression and sleep problems. They help us deal with difficult emotions such as anger, sadness, and fear. They improve our physical well-being, and bring harmony, happiness, self-confidence into our lives, relieve stress and tension, and help us maintain inner peace.