Lenovo In-Ear Headphones, In Ear fits comfortably inside the ear canal, with 3 silicon tips, Lightweight design allows user to carry with them, Product Weight: 0.02 kg, Sensitivity: 90 ± 3 dB / 1 mW @ 1 kHz, Impedance: 32 Ω, Frequency Range: 20 Hz - 20 KH

Lenovo In-Ear Headphones, In Ear fits comfortably inside the ear canal, with 3 silicon tips, Lightweight design allows user to carry with them, Product Weight: 0.02 kg, Sensitivity: 90 ± 3 dB / 1 mW @ 1 kHz, Impedance: 32 Ω, Frequency Range: 20 Hz - 20 KHz, Color: Black, Warranty Period: 1 Year