Product Name: DEVIA Smart series dual speakers wired earphone (3.5mm)
Frequency response: 50HZ-20khz.
Speaker impedance: 16 Ω plus or minus 10%
Speaker diameter: 9mm
Rated output power: 3mW
Sensitivity: 90±3dB
Line length: 1.2m
Interface: 3.5mm
Functioncalling, listen to music
Signal to noise ratio>60dB