The Liquid Gold Vape Pen is a modern and stylish vaporizing pen that's amazingly versatile – choose your own color and choose your own oils! Kit comes with USB charger and battery. Enjoy easy, discreet medicating. 4 Voltage setting: ON/OFF ( 5 button clicks), Green Light (3.6 V) , Red Light (3.8 V) Blue Light (4.0 V) Pre Heat (Multicolor). For more information about the Liquid Gold Vape Pen operation, click here!