new and Features: 1.The free storage memory:Software upgrade Built-in 128K programmable storage memory, the mouse comes with red definition software, you can freely configure the mouse buttons and lights, built-in memory, can store a variety of mouse settings. 2.Roller sliding belt feel:Wheel slip band,The rubber-scaled scroll wheel is comfortable to the for touch, and the buttons are crisp and full of passion for operation. 3. Four gears D can be controlled by one key:The free storage memory Can be set to 4000DPI through the driver, fully satisfying the use of gamers. 4.DPI four-speed adjustment:500DPI daily office,2500DPI gaming entertainment,1500DPI design drawing,4000DPI eSports. 5.The mouse adopts an LED light-transmitting design decorated with a strong mechanical sensory appearance. By default, The DPI button can switch between 4 levels, and the DPI value can be set at will through the software, which are red 500DI, blue 1000DPI, green 1500DPI, yellow 2000DPI, cyan 3000DPI, purple 4000DPI, and adjust the way you like. 6.Standard with 7 different color breathing light effects, users can customize the mouse button function Specifications: Mouse memory: built-in 128 Bytes memory Number of keys 6 programmable keys Button life: 20 million times Resolution: 250~4000D0 resolution Breathing light: 4-speed 7-color for smart LED breathing light Refresh rate: 1600 frames/s Counterweight: built-in metal counterweight USB2.0 input 125~1000HZ free switching Size: app.12x7.5cm/4.8*3in Color: As the pictures shown Power Supply: USB Charging Quantity: 1 Set Package Includes: 1*Wired Mouse