1Crystal salt stone: the salt stone lamp is an elegant aromatherapy diffuser that creates aroma and tranquillity. 2Salt crystal lamp: The naturally ionized air helps you sleep better even at night and lets you wake up refreshed. 3Colorful light: This personal aroma diffuser with warm light, 7 colour changing lights and 7 types of pure light can create a warm and romantic environment. 4Easy to use: One button to adjust the light colour, turn on and off. Simply plug into a USB port. 5Ideal gift: A