rii k18 plus wireless 3-led color backlit multimedia keyboard with multi-touch big size trackpad,rechargable keyboard for android tv box,pc,smart tv,xbox,raspberry pi, htpc iptv,windows, macos rii <br><b>quickview</b> <br>rii as the first mini keyboard brand ,all keyboards designed by riitek <br>team. wireless touch keyboard,3-colors backlight keyboard,first <br>multi-touch big size trackpad ,rechargeable keyboard for android tv <br>box,smarttv,xbox,raspberrypi,pc,tablet,htpc,android ,windows ,macs. <br> <br><b>product operation</b> <br>usb receiver location <br>the usb receiver locates the back bottom . <br>open the back case ,you will find the usb receiver and the recharge <br>cable together. <br> <br><b>3-colors backlight control</b> <br>1.the bulb button at the rigth bottom side as the backlight control button <br>2. backlight colors: red ,green,blue. <br> <br><b>trackpad operation</b> <br>1.single finger click: left mouse <br>2.two fingles click: right mouse <br>3.two fingles slid: zoom in/out <br> <br><b>rechargeable wireless keyboard</b> <br>built-in rechargeable keyboard .once recharge last about 2 weeks. <br> <br><b>repair method</b> <br>when the indicator led always flash,you could try to repair as the <br>following two steps , <br>1.press the esc button and turn on the keyboard at the same time <br>2.insert the usb dongle into your main device's usb port and the white <br>led will flash 3-5s ,then off ,that means the repair success . <br> <br><b>warm tips</b> <br>1.when you use the wireless keyboard on fire tv, you need an otg cable. <br>2.the samsung newest smart tv doesn’t support all the functions of <br>the standard keyboard and mouse. <br>3.when you press ‘a’ but appear ‘aaaaaa’ or the keyboard has very <br>short connection distance, because the signal is interfered. <br>4.here is the solution: taking out of the extension cable in the <br>package to connect your tv and the usb receiver. <br>5.if the signal indicator flashes fast, it means the keyboard lost <br>connection with usb receiver. please repair it according to repair <br>steps in user manual.