Touch switch: the touch switch of this USB LED lamp is thoughtful and convenient to use. You just need to touch the head sensor switch of the lamp, long press the button to adjust the brightness, release the button to achieve the desired brightness. Long press weakens the light source, briefly press the button to turn on or off.FLEXIBLE & DURABLE: These LED reading lights adopt flexible 360 degree aluminum alloy gooseneck, durable and flexible, bring light to your favorite position10 LED lights: 10 LED beads in these USB laptop lights, which are bright enough to be read, written or used in most cases. You can rotate the lights according to your wishes, provide enough light in areas with low light and do not disturb your roommates when you share one room with others2 Classic Color: The package includes 2 pieces USB reading lights in black and silver. They are lightweight and portable. You can take them by your sides and use them anywhere. You do not need a charge or battery. In addition, they can be a gift that you can share with your family or roommatesEasy to use: you just need to connect this touch lamp to the USB ports of your laptop, computer, portable power source, USB socket, etc. Have fun reading, computer tasks and camping