0-ESTE4616 Estes USB Charge Cord Proto-X <p><font color="#00ff66" size="2" face="Arial, Helvetica, sans-serif">This is the Charge Cord for the Estes Proto-X Nano Quadcopter. Connects Proto X LiPo battery to USB port of computer to charge the battery. </font></p> <p><font color="#00ff66" size="2" face="Arial, Helvetica, sans-serif">Length: 22.5" (571mm) not including connectors</font></p>