Mini pyramid salt crystal lamp is considered a natural air ionizer. It refreshes the air and helps neutralize the electro-magnetic fields and radiation generated by your computer and other electronics. Use in your office as well as home as it restores and enhances energy. Complete with stand, and a five foot USB cord which allows many options for placement. Ultra bright LED bulb lasts approximately 20,000 hours. USB Salt lamps use 30 times less power than regular salt lamps.