Model: sealed Balanced armature type. Driver Unit: balanced armature</br>Sensitivity: 105dB/mW. Playback frequency: 5-25,000Hz. Impedance: 16Ω (1kHz). Maximum input: 100mW.</br>Cord Length: about 1.2m. Code Type: silver-coated OFC litz wire (Y type).</br>Input Plug: Gold-plated L-shaped stereo mini plug. Weight: about 4g (excluding cable).</br>Accessories: hybrid earpiece (SS, S, M, L 2 each), carrying Pouch, clip, cord length adjuster.</br></br>Product Description</br></br>Linear drive balanced armature./Sound conduit and housing are made of brass.It realizes a clear sound. /Direct drive structure./Serrations cable to be less entangled.</br>