... computers; USB keyboard,USB Mouse; keyboard and mouse combo1,Ergonornic design comfortable handle feeling2,waterproof and anti-dust design,long time work ... when use it.7) Long time for use for Keyboard and mouse8)Comfortable ultra-low-keycap, very close to fingertips,clear ... for use, Anti-Static,Anti-Electromagnetic interference the cheaper keyboard and mouse combo ( 2 in 1 )