Cobra XRS9930

( XRS 9930 ) 12 Band High Performance Digital Radar/Laser Detector

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This item has been discontinued

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Cobra XRS9940

OUR PRICE: $159.99

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  • 12 Band High Performance Digital Radar/Laser Detector
    • X Band Radar
    • K Band Radar
    • Ka Superwide Radar
    • Ku Band Radar
    • VG-2 Rader Detector-Detector
    • Spectre 1 Rader Detector-Detector
    • LTI 20-20TM Laser*
    • Ultra LyteTM Laser*
    • ProLaser*
    • ProLaser III*
    • Safety Alert® System
    • Strobe Alert® System*
  • *360 Detection
  • Ultra Performance: Extra detection range provides advanced warning.
  • Radar Gun Pop Mode Detection: Detects the latest Radar Gun Pop (Super-fast Instant-On) Mode.
  • Ku Band Detection: Detects Ku Band Radar Gun currently being used in Europe. Be ready when it comes to U.S.
  • IntelliMuteTM: Relative speed sensing auto mute system that virtually eliminates false alerts.
  • IntelliShield® False Signal Rejection: Reduces the frequency of falsing in densely populated urban areas. The city mode has 3 levels of setting for enhanced false signal rejection.
  • 8-Point Electronic Compass: Automatically provides an accurate electronic direction reading.
  • Multi-Band Detection: Detects all radar signals listed in table below.
  • Strobe Alert®: A Cobra exclusive, works with tens of thousands of emergency vehicles currently equipped with traffic light controlling strobe emitters. Provides advanced alert of the presence and/or approach of these vehicles.
  • Smart PowerTM: Automatically shuts off power to the unit when ignition is turned off.
  • Voice AlertTM: Provides the user with specific band voice annunciation.
  • LaserEye®: Provides 360 detection of laser signals.
  • Safety Alert®: Warns driver of emergency vehicles and road hazards from systems equipped with Safety Alert® transmitters.
  • VG-2 Alert®: Alerts the user when they are under surveillance of VG-2 radar detector-detectors.
  • VG-2 Undetectable: Provides complete immunity to VG-2 radar detector-detectors.
  • Spectre AlertTM: Alerts user when they are under surveillance of Spectre 1 radar detector-detectors.
  • Spectre Undetectable: Provides complete immunity to Spectre 1 radar detector-detectors.
  • Full Color Extreme Bright DataGrafix DisplayTM: Provides enhanced data display in easy to read vivid full color. Also allows user to select different color schemes.
  • City/Highway Modes
  • Digital Signal Strength Meter
  • Auto Mute
  • Dim Mode
  • EasySetTM Programming Menu
  • Stay Set Electronic Memory
  • System Ready Prompt
  • Battery Voltage Display
  • Low Voltage Warning
  • 1-year warranty

Laser Jammers and Radar Jammers are illegal in the states of Nebraska, Minnesota, Utah, California, Oklahoma, Virginia, Colorado, Illinois, Washington DC or any U.S Military Base. Sonic Electronix, Inc. does not endorse or support illegal usage of radar/laser jammers. Furthermore, users of radar or laser jammers in prohibited states may face penalties of the law; excluding Sonic Electronix, Inc. from any liability.

Product History:

Cobra XRS9940 thumbnail
(newest, current model)
Cobra XRS-9930 thumbnail
(previous model, replaced by Cobra XRS9940)

Product Features

Number of Modes
This number indicates how many modes the radar detector can be set at. Most detectors will include a city and highway mode. More advanced radar/laser detectors will offer more modes to suit your needs.
Dark Mode
Dark mode is a brightness option. Unless there is an alert, the unit will be completely dark.
Voice Alerts
The feature designates if the unit uses voice alerts. Voice alerts will audibly alert the driver of various warnings.
Auto Mute
The auto mute function will conveniently mute the alert tone when the alert lasts for an extended period of time. This is for the drivers convenience during extended encounters.
Auto Shut Off
A convenient feature that turns off the unit when the ignition is turned off.

Product Specifications

Radar Display
The type of display that the radar detector has.

LED Displays: Tells the driver what he or she needs to know through a bright LED display.

LED Icon Indicators: Tells the driver what he or she needs to know by illuminating icons and symbols.

Text Display: Tells the driver what he or she needs to know by illuminating text on the display.

LED Display
Signal Strength Meter
This feature means that the unit displays that strength of the received signal.
Brightness Control
If the brightness of the unit can be conveniently adjusted and controlled, it will be listed here.
Turn-on/off Select Bands
Many radar detectors can detect many different bands of signal. This feature designates if the user can select what bands he or she has on or off.
Unit Mounting
Different radar detector are attached to the vehicle in different ways. The most common is for it to be suction-cupped to the windshield. This allows the unit to be moved from one vehicle to another with ease. Another mounting option is called remote-mounting. A remote mount unit is directly installed into your vehicle.

Other ways to mount your radar detector include Velcro and adhesive.

Suction cups
Power Source
The power source is the method in which the unit receives power. Some units will be powered by batteries, while others will need to be plugged in to an AC or DC power source.
12V DC Car Adapter
Direct Power Accessory
If there is an optional accessory to the unit that will provide power, it will be listed here.
Travel Case Included
If a protective travel case is included, it will be listed here.


Number of Detected Bands
This number indicates the number of bands the radar/laser detector protects against. The term band includes different radars, lasers, and safety signals, among others. The higher the number, the greater the protection.
X Band
X Band is a frequency used for detecting speed from a police radar.
K Band
K Band is the most popular radar frequency band that is used today. It is able to detect speeds from a stand still location, or from a moving vehicle
Ka Band
Ka Band operates within the frequencies 26.5-40 GHz. This is the newest introduced radar band and it is becoming more and more popular. It rarely has a false alert.
This feature specifies if the unit will detect lasers.
VG-2 Immunity
The VG-2 detects radar detectors. Radar detectors with VG-2 immunity will be immune to the VG-2 radar and alert the driver when they are under such surveillance.
Pop Alert
Some radar guns operate in a POP mode so they can get a speed reading of a target vehicle extremely fast, resulting in most radar detectors not being able to consistently signal an alert. There are very few radar guns in service in the U.S. capable of POP mode operation. If your radar detector is Pop Alert capable, you may notice an increase in Ka-band false alerts when POP mode radar detection is switched on.

Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
Not warranted
Labor Warranty Duration
Not warranted
Warranty Provider

Summary of Customer Ratings & Reviews

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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Cobra XRS9930

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Cobra XRS9930

( XRS 9930 ) 12 Band High Performance Digital Radar/Laser Detector


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