title: Max. Bluetooth Distance
body: <p>Simple Technical Questions :</p>
  
  <ol>
  <li><p>What is the maximal Distance/Range where Bluetooth is Operationnal ?</p></li>
  <li><p>Is there a way to Improve the Maximal Range ?</p></li>
  <li><p>Is there a Protocol , to Transmit somes Data , who does Not need any Internet Connection , or Phone Network ?</p></li>
  <li><p>Wifi Direct need an Access Point between Devices ?</p></li>
  </ol>