Every day, whether you recite aloud or silently, "Nan (ná) No (mó) A (ā) Mi (mí) Tuo (tuó) Buddha" can be blessed (you should be able to hear every word clearly in your mind when reciting). Chanting Buddha's name is more effective than wearing anything. Because Amitabha has vowed to use his name to save and protect us, it is amazing to recite the name of Buddha often. The word "Nanwu" means respectful and willing to accept salvation and protection.
Of course, it can also protect the two great bodhisattvas who often say "there is no avalokitesvara in South China" or "there is no bodhisattva in South China".
Many mages have made it clear that they should not wear Buddha and Bodhisattva statues, because our bodies are unclean, and sometimes we go in and out of some unclean places to do some unclean things.