The R4, by Uniden, is an all new platform with a much greater range. It has a new Auto Mute Memory feature, which automatically locks out false alert locations. The R4 also has the best K Band filter on the market, offering the least amount of false alerts from blind spot monitors and K Band sensors in other vehicles. When you need the best information possible, and none of the noise, Uniden’s R4 Extreme puts you miles ahead.

Product Overview

• Extreme Range Laser Radar Detection
• Two LNA (Low Noise Amplifier) Design
• Digital Signal Processor
• GPS Built-in for Red Light and Speed camera locations
• Ultra-bright, Easy to Read, Multi-colored OLED Display
• MRCD/MRCT (Alert priority: Laser, MRCD, Ka, K, X) with customizable tones 
• Red Light Camera Alert
• Speed Camera Alert
• Auto Mute Memory - Automatically locks out false alert locations
• Advanced K/KA Band Filters
• Voice Notifications
• GATSO Detection
• Quiet Ride (Speed-based Auto Mute)
• Auto Dim
• Bogey Tone, Customizable, Alerts
• Radar Band Frequency Display (Current Speed, Battery Voltage, Altitude, Clock)
• Laser Gun Identification
• Spectre Elite Undetectable
• MAX Speed Warning System
• Suction Mount Included (single and double)
• Carrying Case Included
• Cigarette Adapter with Mute Key, USB port, Data Cable, and Remote Keypad (optional accessory)
• Upgradeable Firmware