USB salt lamps are a beautifully hand carved, computer friendly soft glowing salt lamp. The lamp comes with a color changing LED and USB cord. Use your Mini USB lamp by plugging it into the any USB port. The unique feature of this product is that it helps reduce electro-magnetic pollution, its hazardous effect and helps to cleanse the air creating a pleasant surrounding. It is a beautiful addition to any small work space and makes a great night light for children and adults.