Descriptions:
-Neck band headphone with built in line microphone.
-Neck band earphone premium with high sensitivity mic for excellent on-line takling.
-Computer headsets with on/off button, volume control available as needed.
-Headphones with cushioned earbuds comfortable to wear.
-Stereo headphones with OEM quality logo imprint service offered.
-Neck band headset with RoHs/CE available as demand.
-Computer headsets with buyer's specifications accepted.
-Package: PE bag / blister case / color box, or any others as needed.

Headphone specifications:
-Driver unit: Dia 30mm
-Impedance: 32ohms
-Sensitivity: 109dB+/-3dB
-Max input power: 50mW
-Frequency Response: 20Hz-20,000Hz
-Cord length:1.8m+/-3%
-Plug type: 3.5mm stereo

Microphone specifications:
-Dimensions: 6×5mm
-Sensitivity: 60dB+/-3dB
-Frequency Response: 20Hz-20,000Hz