If your remote battery dies or the remote is lost, you aren't stranded. Every Cobra 3865 comes with a 4-digit PIN code (found on your PIN card).

The Cobra 3865 manual typically includes:

The Cobra 3865 is a mini-modular Thatcham Category 2-1 car alarm upgrade, featuring perimetric protection and ultrasonic volumetric sensors for interior motion detection. Key installation guidelines include placing the alarm unit inside the vehicle and positioning ultrasonic sensors on the A- or C-pillars. Official legacy manuals for Cobra products are available at the Cobra Support Center . Download Product Manuals for your Cobra Device

Corner pockets have double stitching and plastic-reinforced tension hooks — a step up from generic $40 tops that rip at the corners after one windy day.