At work I was given a keyboard that had been fairly well used, and with a limited desk space I didn't want all the wires. I wanted a decent keyboard (No fancy stuff) which was easy to connect, use. MK270R fits the bill perfectly and to top it all off, the price isn't too expensive. I have had it for less than a month, so I wouldn't know about the battery life. I have a slightly more advanced model at home which I bought a year ago and still haven't changed the battery.