Jupiter Jack turns your car radio into a speaker phone. Simply plug the compact Jupiter Jack unit into any cell phone headphone jack, tune your car radio to 99.3 FM and start talking. Enjoy crisp, clear conversation as the sound is transmitted through your car speakers while keeping your hands on the wheel. An inexpensive alternative to costly blue tooth systems. Fits any cell phone headphone jack. Adapters for all cellphones included.China as seen on TV Jupiter Jack
