Rii K12BT Ultra Slim Portable Mini Wireless Bluetooth Keyboard With Large Size Touchpad Mouse,Stainless Steel Back Cover For PC,Surface Pro 2,3,Android IOS Tablet PC/Galaxy Tabs,Smart TV Box,Windows Built-in rechargeable Lithium-ion battery compatible for PC,Laptop,Android OS Tablet PC/ Galaxy Tab& Android Smart Phone/Raspberry PI 2, Surface Pro 2,3,MacOS,Linux, HTPC, IPTV, Google Android Smart TV Box ,XBMC,Windows 2000 XP Vista 7 8 10 , Most Ultra-slim with stainless steel Bluetooth keyboard,please note that the bluetooth button in the back side of keyboard ,and press ENTER button on keyboard to pair with the main device This is wireless QWERT keyboard and touchpad combo,Large touchpad with multi-finger functions,please note that the keyboard Size:10.5*3.5*0.5in. A single finger click as left mouse function, two-finger click as the right mouse function,please make sure that your device support bluetooth,and make sure to open the main device Bluetooth function before pair with the keyboard Auto sleep for saving battery, clicking on any key to activate,Easy operation