Ship from Hong Kong. LED Light: 1.Touch the base square logo can turn on/off the light. 2.Brightness adjustable by touching more than 3 seonds. Instructions : 1.Connect the USB cable (included) to your computer when charging. If you wish to charge with a power adapter (not included) you may connect it to the audio port. 2. USB port or power adapter can be used for charging 2 hours. 3. Please charge immediately when lights are not bright or sound becomes very dim. Eye-care touch USB LED Clip Desk Lamp. Support pole: adjustable height and angle. Touch sentor technology, adjustable brightness. No dark area, No ghosting, No glaring. Simple, Elegant, Fashionable.