EWA A103 Mini Wireless Bluetooth Portable Speaker

Description

A device that converts analog audio signals into the equivalent air vibrations in order to make audible sound. When CRT monitors were the norm, speakers designed for computers were shielded to avoid magnetic interference with the CRT’s magnetic coil.Speakers are made up of a cone, an iron coil, a magnet, and housing (case). When the speaker receives electrical input from a device, it sends the current through the causing it to move back and forth. This motion then vibrates the outer cone, generating sound waves picked up by our ears.External speakers are connected to a computer or another device to give the sound more amplification (make it louder), add more bass with a subwoofer, or create surround sound. If you have a laptop, smartphone, or another device with built-in speakers, you do not need external speakers unless you need louder sounds, more bass, or surround sound.