E-3lue EMS601WHAA Mazer II 2500 DPI Blue LED 2.4GHz Optical Portable Mobile Wireless Gaming Mouse Mice for Notebook, PC, Mac, Laptop, Computer, MacBook (White) High Battery endurance: 2 AA batteries (18 Months Max. Battery life; Not included); multi-stage power saving mode, less power consumption. There is a button at the bottom of the mouse, three options: on, off, on/light. Put it at on/light, the LED backlight will light up. Strong durability and 33ft long working distance. 500, 0000 times keystroke test and perform well. 2.4GHz wireless technology, increased working distance of up to 33ft. Upgraded design with LED illuminated rubberized scroll wheel; ergonomically designed for right-handed gamers utilizing 'air Wing' Concept, long-term use without fatigue.Usb Nano receiver can be stored within the back of the mouse. Adjustable DPI (dots per inch) switch 500/ 1000/ 1800/ 2500, control your own speed freely. No need any driver, plug and play. Wide COMPATIBILITY. Compatible with most system including Windows, Mac and Linux. Fit for laptop, PC, Notebook, Computer, MacBook and other device.Work perfectly for Windows7/8/10/XP Size: 125 x 85 x 40 mm Adjustable DPI: 500/1000/1800/2500 Polling rate: 250Hz Buttons: 6 Maximum Acceleration: 20G Wireless type: 2.4G Distance: 33ft Wide Compatibility. Compatible with most system including Windows, Mac and Linux. Fit for Laptop, PC, Notebook, Computer, Macbook and other device.Work perfectly for Windows7/8/10/XP. Energy-saving:Multi-stage power saving mode, less power consumption. There is a button at the bottom of the mouse, three options: ON, OFF, ON/light. Put it at ON/light, the LED backlight will light up. 2.4 G Wireless Transmission Technology: Enjoy the fast data transmission at the convenience of the wireless technology. Comfortable Hand Feeling: With special processing and advanced material, this wireless mouse makes you feel comfortable. Change the Speed of Mouse Freely: You are free to adjust the mouse sensitivity to match your activity. There are 4 DPI levels available (500-1000-1800-2500) Forward and Backward Buttons:The buttons on the left side are forward and backward buttons which help you to go forward and back while web browsing. Compact Receiver: The wireless tiny receiver can be inserted into the slot next to the battery slot, allowing ease of storage when not used. 1 x E-3lue Mazer II wireless mouse 1 x USB receiver 1 x Instruction