Thank You Very Nice Sharing ! Sorry being stupid , can i know about how to use this ? what is the function ? >_< You guys rock! I'm stuck here though:Go to Tools-Customize. Choose the commands tab. Can't find it I'm using Word 2007 Thanks so much Was Disneyland Better in the those days or today. The problem with these modules is that when someone’s transmitting all the time, like you will be in this case, other things on that band will stop working (garage door openers, car remote locking, etc). The two common bands they make these in (433 and 315MHz) are already crowded with devices. The bands are meant for devices that send a short message and then turn off. I spent a lot of time testing these modules and while they are good for things like outdoor weather stations, they’re not good for real-time communication like you would want in robotics.