Rii's i8 is the premier mini keyboard on the market. The keyboard includes a touchpad DPI adjustable functions and built-in high sensitive smart touchpad with 360-degree flip design. The mini QWERTY keyboard and touchPad combo which supports multi-finger functions. The keyboard has the ability to type as a computer keyboard, and also be used as a remote control for a smart TV. It is charged by a built-in rechargeable lithium battery. It contains a 2.4G Wireless connection. With 2.4G standard USB receiver it is perfect for PC Laptop, Raspberry Pi 2-3, MacOS, Xbox 360, Xbox One, PS3, PS4, Google Android TV Box, HTPC, IPTV, and so on. Special Notice: if you want to use this keyboard with Amazon Fire TV 4K and Amazon Fire Stick you need to prepare a Micro USB host OTG cable.