The Call Guardian Stop Nuisance Calls is a handy call blocker unit that allows you to easily block unwanted calls with the touch of a button. Its model, CT-CID803, is designed for easy setup and use, making it a convenient solution for those tired of receiving nuisance calls. The sleek black design adds a stylish touch to your home phone setup, while the unit quantity of 1 ensures that you only need to purchase what you need. Made in China, this call blocker is a practical and effective way to filter out unwanted calls and protect your peace of mind.