The R4 by Uniden has a much greater range than the R3. Its Auto Mute Memory feature automatically locks out false alert locations. The R4s K Band filter on the market signficantly reduces the 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._
Dimensions (Overall): 1.23 inches (H) x 2.8 inches (W) x 4.49 inches (D)
Weight: .3 pounds
Electronics Condition: New
Connection Type: RJ-11
Wireless Technology: No wireless technology
Battery: No Battery Used
Warranty: 1 Year Limited Warranty. To obtain a copy of the manufacturers or suppliers warranty for this item prior to purchasing the item， please call Target Guest Services at
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