iPazzport Bluetooth Backlit Mini Wireless Keyboard with Touchpad for Smart TV and PC KP-810-10BTS Multi-touch touchpad for the mouse function Backlit available for dark environment(press fn+F1 to turn on/off) Bluetooth wireless connection within 18ft(It's better to connect with this keyboard via internet bluetooth) Work for HTPC/XBMC/Raspberry Pi(Don't work with Samsung Smart TV)) It's convenient to take away in your journey, put into pocket.