Quantity   Component name
1 × Arduino Nano R3 Arduino board based on ATmega328
1 × TDA8425 Audio ICs / Tone Control Circuits
1 × YDA138 Audio ICs / Audio Amplifiers
3 × NE5532 Amplifier and Linear ICs / Operational Amplifiers
1 × MC78L05 Power Management ICs / Linear Voltage Regulators and LDOs
1 × AC6939 Bluetooth Audio Module Bluetooth audio module
1 × RGB Backlight LCD - 16x2 LCD