A speaker driver is an individual transducer that converts electrical energy to sound waves. More drivers may result in better sound quality.
2.control panel placed on a device
There is a control panel on the device body, so you can easily access the volume control or remote without having to interact with a cable or another device it's connected to.
The device is protected with extra seals to prevent failures caused by dust, raindrops, and water splashes.
4.is dustproof and water-resistant
The device is dustproof and water-resistant. Water-resistant devices can resist the penetration of water, such as powerful water jets, but not being submerged into water.
Devices with neodymium magnets are lighter and more powerful than those which use ferrite magnets. They also have more bass and clear high notes.
When covered under the manufacturer’s warranty it is possible to get a replacement in the case of a malfunction.