Ultimate Ears Boom 2: 29 facts and highlights

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

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.

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.

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

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.

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.

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

The battery can be recharged and used over again.

Wireless devices allow users more freedom of movement.

Device is protected with extra seals to prevent failures due to any kind of weather.

With a standard mini jack socket, you can use the device with most headphones.

More microphones result in better sound quality and enable the device to filter out background noise.

The time it takes to fully charge the battery.

Devices with a higher sound pressure level are generally louder when supplied with any given audio source.

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

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

Dustproof / water resistant at depth equal to or greater than 1m.