Automation is now essential everywhere. It is easy to create sound, and is available in many forms (i.e.) Human speech, clap sound. Switching the devices mechanically would suffer some disadvantages. Our project is to control the home appliances such as fan, light, TV, etc., using human speech .The idea is that the MIC converts sound energy into electrical signal which is amplified and micro-controlled using arduino and then given to the relay circuit which switches the home appliances. We can use Bluetooth module or GSM system. External noise and fluctuations, may affect the output of this project but this can be overcome by using an android system using Bluetooth module which is more economical.