Advantages: 1.Lightweight in-ear stereo earphones provides natural clear and super enhanced bass sound. 2.Compatible with Samsung Smartphones, MP3 player, Laptop, Tablets, other devices with 3.5mm headphone port. 3.All metal housings tuned for accurate music reproduction and amazing clear BASS. 4.Comfortable In-ear design earphones , which can isolate outside noise with highly qualified sound insulation effect. Product parameters: Using the Tuned Port technology, can bring ultra-wide frequency response range, high frequency to do more, low-frequency dive deeper, broadband response micro-sound unit Impedance: 32 ohms Sensitivity: 116 dB SPL / mW Wire: high-fidelity copper, headphones and plugs at the enhanced treatment Miniature 3.5mm (1/8 "") stereo gold-plated plug Type A:Transparent line Color:White,Blue,Gold,Pink,Black Wire Material(the roll material): Braided wire Type B:Crystal line Color:Sliver,Blue,Gold,Green,Black,Red Wire Material(the roll material): Braided wire Type C:Fabric Line 1 Color:Blue,Green,Red,Black,White Material:Cloth and ABS Plastic Type D:Fabric Line 2 Color:Blue,Green,Red,Black,White Material:Cloth and ABS Plastic