USB shield – usb host shield
if you will not use External Power please be sure this jumpers are soldered as below :

so after soldering it will be like this image

Arduino Nano Board
1 × 55 SAR
DFPlayer Mini MP3 Player Module For Arduino
1 × 92 SAR
Flexible Jumber Wires 65pcs
1 × 25 SAR Subtotal: 172 SAR
Arduino Nano Board
1 × 55 SAR
DFPlayer Mini MP3 Player Module For Arduino
1 × 92 SAR
Flexible Jumber Wires 65pcs
1 × 25 SAR Subtotal: 172 SAR
if you will not use External Power please be sure this jumpers are soldered as below :

so after soldering it will be like this image

All Electronics Components
All Electronics Components
All Electronics Components
All Electronics Components
All Electronics Components
All Electronics Components
All Electronics Components
All Electronics Components