Features:
Multi Damping Balance SystemM.D.B.S makes the sound performance more natural and smooth by adjusting the opening degree of the back cavity, the damping of the front cavity and the size and volume of the cacity.13.6mm DD
13.6mm large and thin diaphragm can bring a more natural low-frequency texture, and a wide and balanced frequency response and sound dynamics. The open structure can also bring enthusiasm and musical tone performance, and better achieve our tuning expectations.Ergonomic Shape for Comfortable Wearing
We understand wearing comfort is one of the biggest concert for most in-ear earphones, thus we have paid high attention to this to present you a comfortable, secure fit and noise isolation earphone while it also possesses astonishing industrial design and beauty. CVJ-Angel Wing could be the earphone on-the-go or something for professional scenario.
Specifications:
Brand: WhizzerModel: BS1Sensitivity: 109dBResistance: 18Frequency: 20hz-20khz

Package Included:
1 pair * Whizze BS1 earphones7 pairs * Earplugs(different size)1 * User Manual