Homemade stylish mini Bluetooth speaker with pam8403 amp

This nice portable speaker made by a clear plastic casing from USB Hard drive packaging box.This speaker run with 5v.Using the most popular USB mp3 Bluetooth module. you can play mp3 from USB drive & sd card.FM radio & play from phone throw Bluetooth.This speaker used
PAM 8403 class D amplifier.The PAM8403 is a 3W, class-D audio amplifier. It offers low THD+N, allowing it to achieve high-quality sound reproduction.So you can feel nice & loud sound.There are also used 2 inch 5 watt 4 ohms speaker.Using a 18500 battery for power & a 1 amp power bank circuit (5v out put bost converter with li- ion charging & protection system).you can charge it with any phone charger. It can can run 5 hours with a single charge.
you can easily Cary your backpack or even in your pocket.
Its made cost only less then in 10 $ dollars. you can;t find any portable speaker like its quality in market in this price.
I give some link on bellow cheek the hardware.

Видео Homemade stylish mini Bluetooth speaker with pam8403 amp канала Rajib Arts & Technology Md.Mahfuzur Rahman