In-ear subwoofer universal headphones

Wearing method: earplugs
Plug diameter: 3.5mm
Plug type: straight plug type
Frequency response range: 20 (Hz)
Impedance: 16 (Ω)
Sensitivity: 110 (dB)
Wire length: 1.2 (m)
Earplug/earmuff material: environmentally friendly silicone
Headphone cable material: TPE