We set up and tear down a lot of home theater and audio/video gear on a daily basis — everything from speakers and subwoofers to amplifiers, receivers, turntables, and everything in-between. And one ...

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 ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Interconnected tech—devices that talk to each other, and talk to you—are the dream for electronics ...