PACKAGE CONTENTSKeyboard (K220)Mouse (M150)USB receiver2 AAA (keyboard) and 2 AA (mouse) batteriesUser documentation..

Long life keys with life span of 10 million times and compact size for space savingKey Pressure: 65g, comfortable feeling, effectively reducing typing stress, release the arm muscle strainNoiseless design undisturbed working environment3 Function keys: sleep, wake up and power3 Pieces LED function: num, caps and scroll lock..