Sony SRS-X33: 29 facts and highlights

The driver unit is the component that produces sound in the device. Bigger drivers are more powerful and can produce better bass.

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.

Devices with stereo speakers deliver sound that surrounds the user from left and right side, creating a richer sound and a better experience.

With a detachable cable you can use alternative cables, and if the cable is pulled it will pop out instead of breaking.

The lowest frequency at which the device produces audio. The lower the low-frequency response, the stronger and juicier the bass.

Device supports fast Bluetooth pairing using NFC so it can communicate with other devices over Bluetooth. You can fastly pair devices without entering a code by simply holding one device next to the device with which it is to be paired.

A speaker driver is an individual transducer that converts electrical energy to sound waves. More drivers may result in better sound quality.

An amplifier is integrated into the device. An audio amplifier takes a small signal and makes it bigger without making any other changes in it which results in better sound, so any sound source can be connected to speakers.

An auxiliary input allows you to play other audio sources by connecting them through a simple audio connection like a 3.5mm jack, i.e for MP3 or portable DVD/CD player.

A passive radiator looks like a normal driver (speaker) from the front, but on the backside all of its 'guts' are removed. Passive radiators allow woofers to produce deep tones that otherwise may not have been possible. They can have the same sonic output as larger speaker cabinets, but in a much smaller size.

The device can connect at a greater distance via bluetooth / infrared to another device.

The battery can be recharged and used over again.

An indicator shows you when the device has low battery.

Wireless devices allow users more freedom of movement.

The highest frequency at which device produces audio. The higher the high-frequency response, the clearer and crispier the treble.

The manufacturer offers a branded wireless charging kit. To charge the device, you simply put it down on its charging base.

With more USB ports, you are able to connect more devices.

It can transfer files, music, photos via USB, no need to install additional software.

When covered under the manufacturer’s warranty it is possible to get a replacement in the case of a malfunction.