hi guys in this video...me 3773. amplifier board Unboxing & testing ={AK, jugaad experiment}✓✓. अब स्पीकर बनाना हुआ बहुत ही आसान बिना किसी वायरिंग के बनाए होममेड ट्रॉली स्पीकर
1}=(3773) amplifier board Unboxing
2}= ..4..inch.. speaker &..8..inch speaker.. testing
3}= Bluetooth USB module
4}= 0-12 transformer.....
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