Sony MDR-EX70LP

Fontopia® Headphones in-the-ear design fits snugly, yet comfortably inside the ear; eliminates the headband so you can enjoy music while exercising, skating or dancing
Sony's first closed-type Fontopia design reduces outside noise for high-intensity listening; helps generate powerful, resonant bass response
New, super-small 9 mm drivers are a key enabling technology; ultra-compact drivers produce powerful sound with space left over for the sonic isolation of Sony's newly-designed silicon earbuds
Soft, silicon earbuds reduce outside noise, provide long-lasting comfort, hour after hour; the earbuds are washable, removable and replaceable
Two sizes of earbuds accommodate a full range of ears
Long-throw PET diaphragm or deep, extended bass down to an incredible 6 Hz; low mass for extended high frequency response all the way out to 23,000 Hz
400 kJ/m3 Neodymium magnet for maximum energy in minimum size; ounce for ounce, this high-power Neodymium is far more powerful than conventional Samarium Cobalt or Aluminum magnets; even with the small, 9 mm drivers, Neodymium achieves 100 dB of sound pressure output from a modest 1 mW input power.
Oxygen-Free Copper (OFC) cord for high signal transmission, low noise
Stylish, Neck-Chain Cord
Gold-plated mini-plug for exceptional corrosion resistance, superb conductivity, low noise
Streamlined, compact case neatly stores the ear-buds and headphone cord when not in use; vivid purple styling; high-impact case is ideal for carrying in a pocket or backpack
New case design minimizes cord tangles; partial winding can shorten the effective cord length during use
Type Lateral, In-the-ear, Closed, Dynamic
Driver Unit 9mm diameter
Diaphragm PET, long-throw
Magnet 400 kJ/m3 high-power Neodymium
Cord OFC; Neck Chain, 4 feet (1.2m)
Plug Gold-plated, L-Shaped, Stereo Mini Plug
Impedance 16 ohms at 1 kHz
Sensitivity 100 dB/mW
Power handling capacity 100mW
Frequency Response 6 -- 23,000Hz