The keyboard itself is compact and durable, made from a thick plastic that puts their older Logitech K400 Plus keyboard to shame. Both its Bluetooth and 2.4GHz connections are stable work from a max distance of 49 feet away. While most of the keyboards we reviewed only support 2.4GHz wireless, the Logitech K600 also supports Bluetooth, allowing it to work with the widest variety of devices. The Logitech K600 is a multifunctional touchpad keyboard that sets the bar for what one should expect out of a mini wireless keyboard.