1) Loud VolumeA few years back, the size of speakers measured the maximum volume of speakers but now, in the era of portability the loudness of speakers must not be compromised with the size of speaker and vice versa. So a perfect balance has to be struck between size and volume, in order to achieve this, speakers come with bi-amplification where each driver is dedicated to own amplifier. Speaker must also be tuned to maximum efficiency making the system play brassier with enough energy to cater to demands of any playback material.
2. Unbroken ConnectionPeople usually buy Bluetooth speakers because they are in awe of its simplicity, they want a speaker with connect and play capabilities, and nobody will like if their Bluetooth connection will break frequently. If you have an NFC enabled phone I suggest you get a speaker with NFC enabled technology. You can also enjoy great sound quality with the support of aptX and AAC high-definition wireless audio codecs. They provide quality as good as a wired connection.
What is aptX?
It is a digital audio data reduction system that compresses samples of liner audio in real time. The compression is by the factor of 4:1 and there is no distinguishable audible degradation and minimal negligible delay.
AAC stands for Advanced Audio Coding, this as you know default file format for iPhone, iPod and iTunes software. The compression method used by AAC is better than MP3 as AAC can render high frequencies produced by certain musical instruments or human voice thus producing a richer audio.