Griffin Technology has introduced its new ClearBoost case for iPhone, a unique polycarbonate case that aims to help boost the device’s antenna reception. The black and grey case features an internal booster antenna that runs along the inside of the case from the base of the iPhone (where its antennas are located) up and out the top, providing slightly improved signal reception. Other features include open access to all ports and controls, a snap-together design, and an included screen protector. The Griffin ClearBoost for iPhone is available now and is currently being offered online for $30, with a suggested MSRP of $35. Our full ClearBoost review is available here.