<br /> <b>Features :</b> <ul> <li>Small microwave Doppler radar sensor for measuring golf or baseball swing speeds</li> <li>Calculates clubhead or bat speed within a range of 20 to 200 miles per hour</li> <li>Positions about 8 to 10 inches from tee or suspends from a batting cage or net</li> <li>Transmission level </li> </ul>