This is a new generation of vertical mouse, comfortable grip, suitable for office, gaming, etc., rechargeable mouse, no need to replace the battery, support ergonomic design. 6D Wireless Mouse 2.4GHz Gaming Mouse Ergonomic Design Vertical Mouse 2400 DPI JOY Wrist Pain USB Mouse for Laptop Review: This mouse does not need to use AA battery now. It has a battery inside the mouse! You just used a USB charging cable!!!! You no longer need to worry about buying batteries again! This wireless mouse with vertical ergonomic design helps you get rid of fatigue after using the wireless mouse for a long time. Take more care of your health. Avoid carpal tunnel syndrome. Features: 1: Item Type: Ergonomic Optical Mouse. 2: Resolution : 800dpi; 1600 dpi; 2400 dpi. 3: Button : 4 buttons and 1 wheel (middle button) and dpi (adjustable) 4: Maximum operating range: 10 m 5: Charging cable length: 70 cm 6: color: black + red, gray + red. 7: material: ABS 8: System requirements: Windows 98/Me/2000/XP/Vista/Win 7/Win8/win10 or later. 9: item weight: 140 (including charging cable and USB receiver weight) 10: Item size: 12.5 x 6.5 x 7.5 cm. 11: item weight: 92g. 12: Package size: 15.5 x 8.5 x 8.4 cm. 13: Package weight: 157g (including packing box weight) Package includes: 1xMouse 1x USB receiver 1 x USB charging cable 1 x English user manual