How to Make a Speaker Amplifier from Cardboard for Phone ...

Learn how to make your own DIY portable speaker for your smartphone using basic components like mini speakers, an amplifier circuit, and a micro-USB OTG cable. This step-by-step tutorial guides you ...

We earn commissions from purchases you make using links in our articles. Learn more. For many car owners, the stock stereo just won't cut it and thankfully there are plenty of cost-efficient ways to ...