BuyDig offers the Cobra DSP 9200 Bluetooth Digital Laser and Radar Detector for $189. Coupon code "GT50" cuts it to $139. With free shipping, that's $10 under our mention from three weeks ago and the lowest total price we could find by $50. It features DSP and gives alerts of speed and red light traps, police activity, and more via the iRadar community app for iOS or Android.