For sport. Water resistant (The product's functions will not be affected with exposure to some rain or drops of water). Movable loop hanger. Tangle-free serrated cable. Light-weight, clip-on design for active use. Movable loop hanger for a more secure fit. Water resistant (The product's functions will not be affected with exposure to some rain or drops of water). Specifications: Type: Open, dynamic; Power Handling Capacity: 50 mW (IEC [International Electrotechnical Commision]); Sensitivity: 104 dB.mW; Frequency Response: 17 Hz - 22,000 Hz; Mass: Approx. 12 g (0.43 oz) without cable; Supplied Accessory: Clip. Design and specifications are subject to change without notice. Clip. Approx. 1.2 m (47 1/4 in), Y-type. L-shaped gold-plated 4-mini pole mini plug. http://esupport.sony.com/. Learn more about Sony's industry-leading headphones at: http://esupport.sony.com/. Headphones, Clip: Made in Thailand.