Do you have a question about the Cobra 7928 and is the answer not in the manual?
How the LED on the radio key indicates a low battery status.
Step-by-step guide for replacing the radio key battery.
Procedure for starting the engine and arming/disarming the system.
Using the touch key to disarm the system if radio keys are lost.
Procedure to check door, boot, and bonnet triggers.
Procedure to check ultrasonic and hyperfrequency radar sensors.