StackSocial offers the Cobra iRadar 150 Detector for iPhone or Android bundled with the Cobra Mini Universal Phone Mount for $84.99 with free shipping. That's $70 off list and the lowest total price we could find. (For further comparison, we last saw the detector alone for $20 less in June.) This community-based detection system averages 1.1 million user reports per month and has won several awards for innovation. Deal ends January 6.