Cobra SPX-7800BT

Maximum Performance Radar/Laser/Camera Detector


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General Features:

  • 360° Radar/Laser Detector/Camera Detector
  • Undetectable by VG-2 radar detectors
  • Protection against Pop radar and laser recognition
  • Audible alerts provide a verbal identification of the detected band
  • Experience total awareness with the iRadar app
    • iRadar app works with both iOS and Android devices
    • More than 1 million users actively reporting enforcement areas
    • Access to verified database of over 10,000 redlight and speed camera locations
  • High power CPU and military grade components maximize detection range and selectivity
    • Scans every radar spectrum in the blink of an eye
  • IntelliShield provides 4 levels of false signal protection
  • 360° laser detection gives early warnings to threat of laser guns
  • Compact design
    • Discreet
    • Easy to conceal
    • Does not obstruct driving view
  • 8-Point GPS compass
  • Operates in City and Highway modes
  • Easy to read OLED display
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Due to state laws, Sonic Electronix, Inc can not ship radar detectors to Virginia or the District of Columbia.

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.
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 Icon Indicators
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.

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
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.
Ku Band
Ku band ranges from 12-18 GHz when used in radar applications.
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
1 year
Labor Warranty Duration
1 year
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating


chicago, il

Awesome product

June 10, 2014

Pros: love all the features provided through the cobra app

Cons: when used with cobra app, cell phone battery dies really fast.

27 of 33 found this helpful

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Exelente Equipo!!

April 20, 2014

Compact size and lightweight finish ahead of me works great thanks cobra for manufacturing of this quality.

27 of 33 found this helpful

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Browse 2 questions and 5 answers
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What radar detector gives the speed of the car it is in..?.
Bella on Sep 19, 2014
Best Answer: Cobra SPX 7800BT
Reply · Report · gilles r on Sep 21, 2014
· Add Answer · I Have This Question Too (0)
Will this unit work in Edmonton, Canada? There are a lot of hidden photo radars and hidden cops around here.
Frederik L on Sep 23, 2015
Best Answer: Yes. Just make sure you download the I- Radar app on phone and connect via Bluetooth. Otherwise it will act like an ordinary laser and radar detector. I-Radar updates locations of speed traps and cameras
Reply · Report · James B on Sep 24, 2015
· Add Answer · I Have This Question Too (0)

Product Summary


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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 SPX-7800BT

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Cobra SPX-7800BT

Maximum Performance Radar/Laser/Camera Detector


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