Sony IER-H500A h.ear in 2

Weight: 5 g
Design: Intracanal
Description: Design: in-ear, device type: wired headphones, design features: L-shaped plug, microphone, neodymium magnets, plug connector: mini jack 3.5 mm, acoustic design type: closed
Additional Information: Cable type: symmetrical; Cord made of oxygen-free copper: yes; Gold-plated connectors: yes
Plug connector: mini jack 3.5 mm
Impedance: 16 ohm
Sensitivity: 105 dB
Length of cable: 1.2 m
Design features: L-plug, microphone, neodymium magnets
Device type: Wired headphones
Mount type: Without attachment
Maximum playback frequency: 40000 Hz
Minimum repeatable frequency: 5 Hz
Technology: Dynamic
Membrane diameter: 9 mm
Type of acoustic design: Closed
Sensitivity options: DB/mW