From the manufacturer

  
  
Headphone Type Closed Dynamic
Driver Unit 12mm
Magnet Neodymium
Wearing Style In-ear
Sensitivities (dB/mW) 111dB/mW
Frequency Response (Hz) 4-24,000Hz
Impedance (Ohm) 16 Ohm (1kHz)
Power Handling Capacity 100mW
Cord Length Approx.1.2 m, Litz wire, Y-type
Plug L-shaped gold-plated four-conductor mini plug
  
  
Weight Approx. 9g
Waterproof IPX5/IPX7
Unit of Microphone Electret Condenser
Direction of Microphone Omni Directional
Effective Frequency of Microphone 20-20,000Hz