Several studies and surveys have shown that having independent mobility brings significant benefits to both children and adults. While many people with disabilities are contained in traditional or motorized wheelchairs, some of the disabled community find difficulty in using wheelchairs. Many researchers have experimented with various technologies to make the wheelchair suitable for this purpose. The proposed design includes manual control and includes a voice activation system for people with physical disabilities. This paper describes a "Voice Controlled Collision Avoidance Wheelchair" for people with disabilities in which a voice command controls the movements of the wheelchair. The voice command is transmitted through a Bluetooth-enabled cellular device, and the command is transmitted and converted to a string using BT Voice Control for Arduino, and then to an SR-04 Bluetooth module connected to the Arduino board to control the wheelchair. The project also provides for smart wheelchairs by incorporating collision avoidance systems using an ultrasonic sensor and stairwell fall protection devices to prevent wheelchairs from falling downstairs.