DIY 2in1 - Power Bank and Bluetooth Speaker in Mobile Box

DIY Homemade 2in1 - Power Bank and Bluetooth Speaker in Mobile Box - I am using 2pcs Speaker 5 W (8 Ohm) - PAM8403 mini Amplifier: https://goo.gl/Uxv2Ce - Module DIY Power Bank : https://goo.gl/7JMzyp - 4pcs 3,7v 18650 battery - Volt Meter : https://goo.gl/UeshcH - Bluetooth Audio Module Thanks for watching, Have a great day !

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