The Cobra XRS 9945 is one of eight 14-band, high-performance radar/laser detectors from the XRS series. As a grand step-up from previous models, this module upgrades from standard XRS to S-XRS (Super-Xtreme Range Superheterodyne) Maximum Performance technology, which provides improved detection, super-fast radar lock-on, and the ability to catch even the fastest POP mode radar guns.