- Ideal for MP3 players ,- Gold-plated plug with low contact resistance for secure signal transmission ,- Super bass power for powerful bass ,- Single-sided cable for comfortable wearing with no tangles - Connection: 3.5 mm Jack Plug ,- Design: On-Ear ,- Material: Plastic Material ,- Model: Stereo ,- Sensitivity: 103 dB/ mW ,- Cable Length: 1.5 m ,- Speaker Diameter: 30 ,- Frequency Range: 20 Hz - 20 kHz ,- Impedance: 24 Ω ,- Colour: Silver ,- Line: HK-229 2 years legal warranty only