Universal bluetooth keyboard with touchpad  / Aluminum Body Compatible for windows/Android system.                     Scissor type keyboard, good typing.                                Use USA BROADCOM Bluetooth module 3.0 Standard MICR interface                                                 81 chocolate keys                                                            Scissor type keyboard, good typing.                                                                                                     76*47mm touchpad,elan chip, relaxed and comfortable Convenient left and right click buttons                                2 AAA batteries                                                                                                                                                                                         Size:  355x128.8x4.6mm                                                                                  Net weight: 405g/pc