The Logitech Unifying receiver is debuting with four new products: the Logitech® Wireless Keyboard K350, Logitech® Wireless Keyboard K340, Logitech® Marathon Mouse M705 and the Logitech ...

Fortunately, Logitech is helping to solve this problem with their Unifying Receiver. It is basically a wireless dongle that is designed to work with many new Logitech products including the K350/K340 ...

You order a Logitech K350 or K340 wireless keyboard for $50 to $60, or a Logitech Marathon Mouse M505 or M705 for $50 to $70, and you’ll get a Unifying receiver with your purchase.

An included tiny USB Logitech Unifying Receiver can also support a compatible keyboard. The M705 is an ergonomically shaped right-hand mouse with programmable controls.