Kyocera TXCKT00721F - Portable Hands-free Car Kit (Original). The Portable Hands-free Car Kit is an excellent solution for using your phone hands-free in your vehicle, while at the same time keeping your phone charged. ("Safety is always your most important call". Please use your phone safely while driving). Avoid expensive car kits, added installation charges, and just plug the Portable Hands-free Car Kit into your vehicle's cigarette lighter adapter. Charge your phone in about 5 to 6 hours. The green light on the car kit indicates it has power. If privacy becomes an issue, just click the privacy button and pick up the phone for normal use. You can also click the mute button to block out sounds in the car. Adjust the volume with the thumbwheel control device. This car kit is perfect for those who wish to drive safely with both hands on the wheel and ingage in conversation without having to pay a great deal in cost and installation fees.