Metal Material – Metal cavity makes the music became more shock. - Surrounded Heavy Bass Sound – Surround design, enhance the bass effect and sensitivity, listening to the sound from another music world. Fashion Appearance Feels Comfortable – Red circle match black and white earbuds, which is simple and fashion, your ears will feel comfortable to wear it. Silicone Earbuds – Combines with in-ear headphones advantages, adopt human ear canal tilt angle data, designed of deep ear gear, which is so comfortable to wear. Avoid Knotting – Smooth built skin of the earbuds, in order to make better wire soft and shinny, it won`t be knotted and deformation than general wire. Two Keys Drive-by Wire – Touch comfortable, simple and practical, two keys drive-by-wire, convenient for operation. - Brand: JZG-Shark (Brand-New & High Quality)Power: 10mw - Distortion: 3%db at 1kHzSpeaker Size: 10mm0.2mm - Impedance: 32ohm15%Cable Length: 120cm2cm - Highest Boost Level: 98db at 1kHzL&R Balance: 3db at 1kHzPackage Includes: 1x Extra Heavy Bass Earbuds White 1x Friendly Black Case for Earphones 1x Earphones Wire Clip 1x User Manual 6x Earbuds Replacement Ruber