Nike SHJ030 Multi-directional Earhook Headphone (Black)  

• Manufacturer  Philips
• Part#   SHJ030/27 
• Earhook design adjustable in 3 different ways
• Neodymium magnet
• Frequency response: 10 to 22,000 Hz
• Impedance: 16 Ohms
• Sensitivity: 102dB