QUESTYLE SIGMA: Probably A Peerless One
The Greek letter SIGMA (Σ), is the 18th alphabetical order in the Greek alphabet which is derived from the 21st letter of Phoenician alphabet, Sheen. This letter is one of the important symbols in the field of science and mathematics as it was used as mathematical logic particularly on summation, algebra and statistics,and on science for, it was used as a term for a cellular receptors on biology and on reaction and equilibrium rate of chemical reaction on chemistry. And according to QUESTYLE on their interpretation of this letter, it signifies its pinnacle of their innovation on audio technology in which they summed up the best and latest revolutionary breakthrough in the portable audio technologies that they painstakingly implemented on this model which is the main focal point of this product review. QUESTYLE is one of the audio companies that I really admire since I've got their M15 that still works well and became an important part of my tool on audio pr...