Frequency response: 20Hz-20 KHz

Impedance: 16Ω±15%

inner speaker: Ø10mm

Sensitivity: 99+/3dB

length:1.3M; Plug:3.5mm

Microphone: 42db+/-3db

In-ear design, isolate the sound, cancel the noise

Powerful neodymium magnetic bass driven sound.

Only ±1.5dB deviation of two speakers,protect hearing.