The Escort 8500 radar detector technology is ever-improving, so we sell well designed units to meet that challenge. Escort 8500 units include features such as digital voice and audio tone alerts warn you of the use of X, K, and Ka, as well as laser guns, Ku band (for European travelers), and the latest POP and Instant-On devices. We strive to ensure that you have a positive online shopping experience, and earn your business. You are welcome to contact us by phone at 1-888-229-7594 or e-mail us at sales@bestradardetectors.net with your Escort 8500 questions.