ZELOTES F-35A 6 Buttons 2.4GHz Wireless Vertical Mouse USB Receiver 3 Gears 2400DPI Adjustable Optical Mice for Home Office Gamers _x005f_x000D_ Specification: _x005f_x000D_ Brand: ZELOTES _x005f_x000D_ Model: F-35A _x005f_x000D_ Colour: Black _x005f_x000D_ Connection With Computer: 2.4G Wireless Connection _x005f_x000D_ Number Of Keys: 6 Buttons  _x005f_x000D_ Tracking System: Optical _x005f_x000D_ Frequency: 2405MHz-2476MHz _x005f_x000D_ Effective Distance: 10m/32.81ft _x005f_x000D_ DPI: 1000-1600-2400DPI _x005f_x000D_ Working Voltage/Current: 3V/4mA _x005f_x000D_ Button Life: 3 Million Times _x005f_x000D_ Roller Life: 1.2 Million Revolutions _x005f_x000D_ Return Rate: 250Hz _x005f_x000D_ Battery: 1 X AA Battery (Not Including) _x005f_x000D_ Product Size: 110 X 72 X 75mm/4.33 X 2.83 X 2.95" _x005f_x000D_ Product Weight: 90g _x005f_x000D_ _x005f_x000D_ Note: _x005f_x000D_ Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! _x005f_x000D_ Please allow 1-3mm measuring deviation due to manual measurement. _x005f_x000D_ _x005f_x000D_ Included: _x005f_x000D_ 1 X Mouse  _x005f_x000D_ 1 X USB Receiver _x005f_x000D_ 1 X Manual