Jupiter Jack™ makes any cell phone hands-free! This revolutionary cell phone accessory uses your car’s FM radio to transmit sound through your car radio speakers so you can talk and drive at the same time —safely and legally. No need for costly and annoying ear pieces—just plug the device into your phone’s headphone jack (adapters are included), tune in your radio and start talking. No wires or hands needed! Jack works with any cell phone and vehicle. Compact and portable.