Focus & Professional: Even though it is small in size, it achieves the best balance of sound quality and sound cavity, bringing purer, fuller, and brighter tones.Excellent: Premium material with the exquisite process, although it is a difficult processing procedure, only for the delicate side.Features: Super stereo sound gives you high-fidelity music enjoyment, even at home to give you a concert-like experience.Stereo Sound: High power and small volume, redefine the concept of bass, 360-degree stereo surround sound effect is powerful.Wild Compatible: support TF card, U-disk, 3.5mm audio.Supports various smart phones Compatible with IOS & Android.