Whistler XTR-335 Information The Whistler XTR-335 is a radar detector that offers a wide range of features to help you stay safe on the road. It features total band protection from radar signals, 360-degree laser detection, Whistler's patented VG-2 cloaking technology and POP mode, a numeric icon display, dim/dark modes, safety warning system (SWS) alerts, and the "stay alert" function. In addition, Whistler's Real Voice feature pronounces band identification, SWS messages, and feature selection out loud. Introduction The Whistler XTR-335 is a mid-range radar detector that was released in 2011. It is a popular choice among motorists due to its combination of features and affordability. The XTR-335 offers excellent protection from radar signals, including X, K, Ka, and POP mode. It also features 360-degree laser detection, VG-2 cloaking technology, and a variety of other features to help you stay safe on the road.