Bluetooth with touchpad  / Plastic Body                                                                                 Operating systems supported: Win&Mac&Android Supported devices: PC, Smart TV, Android Players, etc.                                                                                               Built in USB wireless receiver (Included)                                       Scissor  type keyboard,good typing.                                81 chocolate keys                                                                                                                                                               89.6x74.6mm touchpad,MOSART chip,relaxed and comfortable. Convenient left and right click buttons.                               2 AAA batteries                                                                                                                                                                                                           Size: 366.54x121.33x18.36mm  405g/pc