Descripition The mouse is with ergonomics and fashion appearance design,which is with good hand feling. This cordless mouse is low pwer consumption,and it comes with many low power mode. There are many colors to choose,which is suitable for both men and women. The arc wireless mouse is moving with no burr and smooth,give you the best experience. With the excellent workmanship and good texture,this is also a good gift idea. Specification Type:arc wireless mouse Color:show as pictures. Size:100-120mm. RF:2402mhz-2480mhz RF operation channel:16,automatic frequnency hopping Rated voltage:1.5V or 3.0V Reted current:7.5-14 MA Max. Acceleration:28ft or Sec. USB:ver. 1.1 or 2.0. Battery:not included. Note: There might be a bit color distortions due to different computer resolutions. There might be size errors due to different computer resolutions. Package included 1 x cordless mouse. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.