Quadbeat 3 headphones by lg provide outstanding sound with quad layer speaker technology for full and balanced sound. lg branded sturdy bass and clear treble ergonomic soft silicone earbuds for comfortable fit flexible, soft cable made of rubber and fabric prevents knotting built-in microphone for hands-free calls three buttons enable music operation and answering phone calls 3.5mm port color: red/black specifications: frequency: 20hz - 20khz impedance: 24 ohms sensitivity: 105db connection: 3.5 mm cable length: 110 cm content: lg quadbeat 3 in-ear stereo headset 2 pairs of replacement ear buds