Sony MDR-E848LP

Fontopia® in-the-ear design fits snugly, yet comfortably inside the ear; eliminates the headband so you can enjoy music while exercising, skating or dancing
16 mm Diameter Driver delivers deeper bass, extended treble and higher fidelity, yet remains small enough to fit inside your ear
PET diaphragms ensure high rigidity for minimum distortion; low mass for extended high-frequency response out to 23,000 Hz
Sony Acoustic Twin Turbo® Circuitry uses sound chamber and ducts for improved efficiency, gets high sonic output from your portable stereo
Thinner housing and slim duct for a snugger, more comfortable fit
Silent Cap prevents sound leakage, makes your music less likely to disturb your neighbors
Neodymium magnet for maximum energy in minimum size; ounce for ounce, Neodymium is far more powerful than conventional Samarium Cobalt or Aluminum magnets
Stylish, Neck-Chain Cord
Cord bushings on ear buds help prevent tangles, enhance durability
Gold-plated mini-plug for exceptional corrosion resistance, superb conductivity, low noise
Compact case neatly stores the ear-buds and headphone cord when not in use; ideal for carrying in a pocket or purse
Type Lateral, In-the-ear, Open-air, Dynamic
Driver Unit 16mm diameter
Diaphragm PET
Magnet Neodymium
Cord Neck Chain, 3.9 feet (1.2m)
Plug Gold-plated, L-Shaped, Stereo Mini Plug
Impedance 16 ohms
Sensitivity 108dB/mW
Power handling capacity 50mW
Frequency Response 10 - 23,000Hz