Wired ES-500i headphones by Awei with excellent sound quality and the ability to answer your calls or change your music with the press of a button. They are lightweight for comfortable, long-term use and have an ergonomic design that fits perfectly in the ear for excellent sound isolation.
Features:
Microphone,
Plug: 3.5mm Jack.
Speaker diameter: 10mm
Sensitivity: 91dB ± 3dB.
Impedance: 16ohms ± 15%.
Frequency: 20-20,000Hz.
Cable length: 1.2m.
Package dimensions: 15.5 x 8.6 x 2.7 cm

