Whistler XTR-195 Laser Radar Detector; Provides Distinct Audio Warnings for X, K, Ka Band Radar, Safety Radar, Laser and VG-2; 360&deg; Maxx Coverage Protects From Front, Sides, And Rear Provides distinct audio warnings for X, K, Ka band radar, safety radar, laser and VG-2. Also provides pulse protection. City button reduces false alerts typically encountered in urban driving areas; Quiet button: pressing QUIET before a signal is detected engages Auto Quiet Mode. The solar panel absorbs sunlight, extending battery power. Units requires 3 AA rechargeable batteries (included); they charge while in the unit. Power/Dark: turns unit on/off and engages Dim/Dark settings (press and hold). Provides distinct audio warnings for X, K, Ka band radar, safety radar, laser and VG--2. Also provides pulse protection.