HP-280

 Closed and dynamic studio reference headphone
 Impedance: 140ohms
 Frequency response: 20Hz – 20KHz
 Sensitivity: 98dB
 Continuous power rating: 30mW
 SPL: 90dB
 Length of cable: 3.0m (9.84ft)
 Connector: Gold-plated stereo mini jack with 1/4” adaptor
 Headphone pressure: ~4N
 Weight without cable: 260g