This report provides an in-depth analysis of voice biometric devices, examining their strengths and weaknesses in the context of security systems. It begins by defining voice authentication as a key component of biometric systems, highlighting its role in enhancing security through voice recognition. The report then explores the advantages of these devices, such as providing high-level security, cost-effectiveness, and ease of integration into existing networks. It also discusses the limitations, including potential accuracy issues compared to facial recognition and sensitivity to background noise. The report references several studies and concludes that while voice biometric devices offer valuable security benefits, it's crucial to manage their limitations for effective implementation.