Altec Lansing UHP306.

Features: Designed specifically noise, eliminate noise at the maximum level, the sound quality and clean as perfect, absolutely.
Details: upholstered soft silicone, plastic, operates in 2 layers effective, compact, have the ear size for individual use.
Gold plated jack.
Material: high driver - Dynamic performance Microdriver
Possession noise: 16dB
Input sensivity: 104 dB / mW
Impedance: 16 Ohms
Signal wire length: 1.2m (46 "), cable, cloth upholstery material toughness, twisted, anti-stretch, ultra lightweight.
Appropriate to the needs of music while working or office