Features: Low power consumption Low voltage alarm function. Micro-receiver. Ultra slim, compact and lightweight, easy to carry. 2.4GHz wireless transmission up to 10 meters operating distance. Decent and modern designed, simple atmosphere, comfortable experience, accord with human body engineering. Wider head of mouse, the slightly sunken main buttons add vibrancy grim and sharpness to streamlined mouse. 3D scroll wheel is good for easy browsing webpage. Using the stripe design on scroll wheel, convenient and comfortable in use. Red light, the front of prism capture the change of image which can meet the ordinary demand. Sunken streamline design on the side of mouse is antislip and hygroscopic, which is also conducive to remove weary. Built-In mouse memory, no recording is needed after battery replacement. Intelligent connectivity, no need to code, plug-and play. Many dormant class control and more power-saving hibernation connectionless. Ideal laptop companion for home and office use. Specifications: Material: ABS Color: Red,Grey Size: 98x58x35mm Resolution: 1000PI Keystroke: 3,000,000 Keypad: Controlled by 3 mouse buttons Interface Type: USB 1.1/2.0 Operation systems: Windows 2000, Me, XP, Vista, Win 7 and Mac Power: 2pcs AAA battery (not included) Package Included: 1x Wireless Mouse(Without Packaging) Ships in 7 business days. It is shipped from China. Delivery is provided by China Post Air Mail. Delivery time depends on the couriers, local customs in your country also holidays, weather conditions. Usually it takes from 39 to 60 days, depending on the customs at your country.