Multi Functioning Power Amplifier

There are lots of Amplifiers are available but this is the Simplest & cost-effective Amplifier using Lm386 booster circuit + Power amplifier circuit with the following features:-

•       Connectivity - 1. Aux cable & 2. Bluetooth 

•       Output - 4 ohm, 3-watt speaker with 3.55 mm output jack

•       Two volume controls - 1st from Lm386 booster circuit and 2nd through external amplifier

•       Two supply modes - AC & DC (9 V)