ELECOM EHP-C3560 Series - 10.7mm Driver Unit- Innerear Type Stereo Headphones - EHP-C3560BK Black Driver unit : 	Dynamic type  10.7mm Speaker input impedance: 	16 Sound pressure sensitivity: 	99dB/1mW Maximum input power: 100mW / Frequency response 	5Hz - 24kHz Cord length: 	1.2 m (Y-type) /  3.5mm 3 pole mini-plug (L-type)