Haafee&reg; HIFI Metal Deep Bass In-ear Headphones Lossless Music Earphone Noise-isolating Earbuds with Top-grade Storage Case 1,has a mellow and sweet vocal performance, tri-band transition smooth natural sense of hearing, with ultra-high resolving power to let you enjoy a rich and deeply emotional soul singers charm. 2,Metal housing, Gold-plated 3.5 mm audio jack for premium, no-loss sound connection to your audio device. 3,Top Grade Storage Case, Simply zip it up for easy travel. 4,3 pairs of Soft silicone ear buds (S/M/L) provide a super comfortable, noise reducing fit