Sennheiser IE 60. Ear coupling: intraaural, Wearing style: In-ear, Headphone frequency: 10 - 18000 Hz. Connectivity technology: Wired, Headphone connectivity: 3.5 mm, Cable length: 1.2 m. Weight: 5 g. Package dimensions (WxDxH): 125 x 54 x 174 mm, Package weight: 0.23 kg