I have the same one. I must say that I love it. I have, well lets say at one time "I had" it mounted for vehicle use with and external antenna. Eventually I found myself changing vehicles when i thought of my new plan for it. I keep a set of rechargeables for "planned use" and i leave a set of lithiums in it all the time. it rides in the cupholder of my truck along with a handheld HAMM radio as well. It works great if you take time to get out of the vehicle before trying to transmit, but will do just fine for "listening" inside your vehicle.Not that its meant for transmitting with the rubber duckie antenna when connected to teh 12v plug, i have used it that way for monitoring just to conserve battery power. If any one reading this knows if you can "safely" use the regular BNC antenna with the 12 v adapter please let me know.

Thanks...