Volume is the quantity of three-dimensional space enclosed by the product's chassis or, in simpler terms, the space the product occupies.
A speaker driver is an individual transducer that converts electrical energy to sound waves. More drivers may result in better sound quality.
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.
The driver unit is the component that produces sound in the device. Bigger drivers are more powerful and can produce better bass.
We consider a lower weight better because lighter devices are more comfortable to carry. A lower weight is also an advantage for home appliances, as it makes transportation easier, and for many other types of products.
The width represents the horizontal dimension of the product. We consider a smaller width better because it assures easy maneuverability.
The height represents the vertical dimension of the product. We consider a smaller height better because it assures easy maneuverability.
You can operate the device easily, by pressing the screen with your fingers.