Sony MDR-W20G

Water-Resistant Headphones for active lifestyles; stands up to rain, snow and occasional splashing
Vertical In-The-Ear Design reduces size and weight to the bare minimum; comfortable hour after hour
Wide Headband for broader weight distribution, added comfort
Large, 16.0 MM Driver Units develops deeper bass; remains small enough to fit inside your ear
Neodymium Magnet for maximum energy in minimum size; Neodymium is comparably more powerful than conventional Samarium Cobalt or Aluminum magnets
Sony Acoustic Twin Turbo Circuit for high efficiency, gets high sonic output from your portable stereo; extends bass down to 10 Hz
Nickel-Plated Mini-Plug resists corrosion for high conductivity, low noise
Type: Vertical, In-the-ear, Open air, Dynamic
Driver Unit: 16.0mm diameter
Magnet: Neodymium
Headband: Wide
Cord: TPC; Y-shaped, 3.3ft. (1.0mm)
Plug: Nickel plated
Stereo Mini Plug
L-shaped
Impedance: 16 ohms
Sensitivity: 108dB/mW
Power Handling Capacity: 50mW
Frequency Response: 10 to 23,000 Hz