TC wireless keyboard + mouse kit. 
The LTC Wireless Keyboard + Mouse Kit is your most important computer peripherals without cables. 2.4 GHz radio transmission means that from now on, your desk won't limit you in any way. The perfect solution for people looking for freedom on their PC.
The keyboard, despite its full size, offers a really compact size. The keys are high, with clearly marked spaces to make typing easier.
The optical mouse is very light, ergonomically shaped and secure in the hand. It has a special place to store the USB receiver, which makes it very difficult to lose.
Instructions for connecting the computer:
1. Connect the receiver, located at the bottom of the mouse, with the computer switched on.
2. Insert the batteries into the keyboard and mouse.
The order of the steps is important!
The LED on the keyboard has 3 states. After inserting the batteries, it starts flashing, which means that it is looking for a signal. It then either lights up continuously or switches off depending on the success of the connection. If the LED goes off, it means that the connection to the computer has failed. It is recommended to remove the batteries from the devices and follow the instructions again.