Main Features   Stereo Earphone - Black CD player, Radio set, Computer, Portable and Desktop Audio, MP3, Language Laboratories and Multimedia Application. Feature: Direct-to-ear high fidelity acoustic Includes 2 ear buds Soft silicone ear bud for comfortable Ideal digital audio companion with trendy style Feature: Speaker: 10 mm Dynamic type Impedance: 32 ohms Sensitivity: 109dB± 4dB (at 1kHz) Frequency: 50~18000 Hz Max. Input power: 10 mW Weight: 15 g (with cord) Cord length: 3.6 feet (1.1 M) Connector: 3.5 mm stereo plug