This document describes the design and implementation of a security system for banks using voice recognition. The system uses a voice acknowledgment module placed at the gate of bank lockers to recognize authorized users based on their voice frequency response. The module can be programmed to allow two users for greater flexibility. A smart camera is used to monitor activity in the building for safety and security purposes. All sensors are controlled by an Arduino board. The system provides greater security than traditional key-based systems and only allows valid individuals to access lockers using a password for protection. It was concluded that the voice recognition security system was successful in providing improved bank locker security.