Bose SoundLink II
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.
A speaker driver is an individual transducer that converts electrical energy to sound waves. More drivers may result in better sound quality.
Vifa Stockholm 2.0
Meridian Explorer 2
With a detachable cable you can use alternative cables, and if the cable is pulled it will pop out instead of breaking.
Devices with neodymium magnets are lighter and more powerful than those which use ferrite magnets. They also have more bass and clear high notes.
Soundmatters FoxL DASH7
Devices with stereo speakers deliver sound from independent channels on both left and right sides, creating a richer sound and a better experience.
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 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.
More microphones result in better sound quality and enable the device to filter out background noise.
Amazon Echo Show
A magnetic shielding limits the coupling of a magnetic field between two devices. The purpose is to prevent magnetic fields from interfering with electrical devices and avoid distortion (of TV, monitors, hard drives etc.).
An indicator shows you when the device has low battery.
The battery can be recharged and used over again.
The time it takes to fully charge the battery.
WOWee One Slim
The manufacturer offers a branded wireless charging kit. To charge the device, you simply put it down on its charging base.
The device can connect to WiFi.
Bluesound Pulse 2i
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 or infrared to another device.
Sol Republic Deck
With more USB ports, you are able to connect more devices.
A standard 3.5mm male connector is suitable for use with all MP3 players and computer sound cards.
Wireless devices allow users more freedom of movement.
The device has an option to mute/unmute a conversation directly from the device.