2400DPI 2.4GHz Wireless Adjustable 4 Buttons Ergonomic Optical Mouse for PC Gaming and Office

English User Manual: https://drive.google.com/open?id=1buS6i7GNo9nNqNhwdAbc_9gXAXcVyyHb Specifications: 1: Item type: Ergonomic Optical Mouse 2: Resolution: 800dpi;1600dpi;2400dpi. 3: Button: 4 buttons and 1 wheel (middle button)and 2 dpi (Adjustable ) 4: Maximum operating range: 10m 5: Color: Black+Red 6: Material: ABS 7: Button life: 5 million times 8: Power supply: 2 x AAA battery (batteries not included) 9: System Requirements:Windows 98/Me/2000/XP/Vista/Win 7/Win8/win10 or latest. 10: Item size:10*8.5*7cm 11: Item weight:80g(Including USB receiver weight) 12: Package size:12.2*8.7*8.3cm 13: Package weight:117g(Including the weight of the packaging box) Features: 1: 2.4GHz Wireless Connectivity (USB receiver) 2: 2 x AAA battery version (not included) 3: Ergonomic designed to remit and prevent carpal tunnel syndrome. 4: Optical laser technology for precise control 5: Easy to use, comfortable to hold, prevent mouse hand. 6: L/R mouse buttons, 2 thumb buttons, and a clickable scroll wheel 2 dpi buttons(dpi +/dpi -). 7: You pick the hand position that best suits you. Plug and play, compatible with Mac. Three-level power saving mode: 1: Three seconds into the first sleep light flashing continuously 2: 1 minute or so to enter the secondary sleep, intermittent flashing lights 3: 8 minutes or so, go to level 3 sleep, the light goes out Package includes: 1 * Mouse 1 * USB Receiver 1 * English User Manual