It comes with LED breathing light. The ergonomic and ultra-slim design make it confortable to hold. There is a USB receiver for wireless connection and it is plug and play. This mouse is an ideal companion for laptops in the home or office. Item Name: Wireless Mouse Material: ABS Battery Capacity: 400mAh (Included) Customize DPI: 800/1200/1600DPI Compatible System: for Windows XP/Vista/7/8/ME/2000, for Mac OS or Latest Buttons: 6 Buttons with Scroll Wheels (Two Side-Buttons, One DPI Button) Frame: 4000fps (32 Megapixels Per Second) Buttons Service Life: 10 Million Cycle Charging Time: 2-3 Hours Data Path: 32-bit Features: Ergonomic, Silent, LED Breathing Light Size: 13.5cm x 7.2cm x 4.5cm/5.31" x 2.83" x 1.77" (Approx.) Notes: Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x USB Receiver 1 x Wireless Mouse 1 x Charging Cable