Product Description *5 Adjustable Dpi & 2 Polling Rate: DPI 800,1200,1600,2000,2400 can be easily changed by order to meet your needs. 2 level polling rate: 125Hz and 250Hz can be switched depending on your activity. USB Nano receiver can be stored in the back of the mouse, allowing ease of storage when not used. No any driver is required, just plug and play. *Accurate & Lag-free Mouse: M652 mouse can not only provide a reliable wireless connection but also an accurate tracking. Allowing you to move your gaming mouse freely without interference within 10m. More flexible for games or work. *Long Life Span & Power Saving: It has passed the 5,000,000 times keystroke test to guarantee extra durability. This wireless mouse will be in sleep mode in 8 minutes of inactivity and wake up quickly by pressing any button. Powered by 1*AA battery not included and easy to be replaced. Ergonomic Design: Contoured shape keeps your hand comfortable even after long hours using. With led light design, makes your mouse look cooler, it can be turned off if you do not need. *Wide Compatibility: Work with Windows 7/8/10/XP, Vista7/8, Linux, and Mac OS. Ideal for work or entertainment in home and office. Basic Parameters Connectivity Technology: 2.4Ghz Compatible Devices: Laptop, Personal Computer Movement Detection Technology: Optical Package list 1 x Mice 1 x User Manual After Sales Policy We will provide a replacement or repair service in the following cases: 1. Send the wrong product. 2. Products have quality problems. 3. You receive a fake one. 4. Products cover damage due to user behavior/ accident is NOT COVERED.