Connectivity Technology:USB Special Feature:100% undetectable, no driver needed, portable, breathing light Size:13.2*12.2*3cm Keep Computer Active & Undetectable: the automatic mouse mover dial spins randomly back and forth, with occasional pauses for a few seconds. Keep your mouse active all the time and prevent your computer screen from locking and going to sleep. The back-and-forth linear motion cannot be detected, allowing you to use it with peace of mind and comfort. (Please make sure the sensor area of your mouse is casting on the spinning wheel of the mouse mover.) 0.5H-1H-2H-4H Timers: When the mouse mover device rotates, click the timer button to set the countdown from 0.5 hours to 4 hours. Each set of lights represents 30 minutes, 60 minutes, 120 minutes and 240 minutes. After the countdown ends, the turntable stops. Plug and Play: The mouse jiggler can use a 5V adapter or a computer USB port, no need to install any software, no other programs or connections to Bluetooth. Easy to use. Breathing Light: Our mouse shaker has 7 dynamic lights, gorgeous lights, make your desk no longer monotonous, and the lights can be turned off/on freely. Short press the light button to freely switch the 7 light colors, and long press for 3 seconds to turn off the lights to avoid being disturbed.