PICTEK Wireless Gaming Mouse, Silent Click, Side Buttons, 2.4G Cordless Computer PC Gaming Mouse Laptop USB Mice, Advanced 2400 DPI Optical Sensor, 7-Button, Ergonomic Grips, Black Noiseless & Durable Click PICTEK Cordless PC Gaming Mice, Silent and Reliable Click feedback of Left and Right button frees your worry about bothering others and keep you focused which is perfect for public occasions such as Library, Office, Living Room, Cafes,etc. Also passed 5,000,000 times keystroke test and performs well. 2.4G Transmission & 5 DPI Switch Plug and Play with this wireless gaming mouse! No need any driver. 5 DPI Levels (2400, 2000, 1600, 1200, 800) to change the moving speed freely and can perfectly meet the needs both in gaming and office. A more Secure and Precise Transmission with wireless range reach up to 15m/50ft without interference. Ergonomic Design & LED Switch The perfect ergonomic contours design brings you comfortable feelings even after long hours using. Also the led red light can be switched ON/ON by the switch button at the bottom which can bring you both gaming and office feeling. Multi-stage Energy Saving Modes Auto Sleeping Function - pictek wireless gamer mouse will be in sleeping mode if it is node used after 8 minutes to save energy, then simply press any button once to wake it up is ok. Also extra ON/ON /OFF switch button at the bottom also can be used to control with three options: on/ off/ LED lights on. Wide CompatibilityCompatible with most systems including Windows 7 / 8 / 10 / XP, Vista 7 / 8, Mac and Linux. Fit for PC , Notebook, Laptop, Computer, desktop, Macbook and other device which have a USB port.