Descriptions:
-Mobile phone handsfree with adjustable plastic ear hook.
-Phone headset with soft and skin-friendly ear hook material.
-Mono handsfree headset with on/off button inline.
-Handsfree earhook with colar clip, convenient for use.
-Mobile handsfree with mono earhook L or R available as needed.
-Mobile phone earphone suitable for any mobile models as required.
-Mobile headphone with RoHs/CE available as demand.
-Ear hook headset with buyer's specifications accepted.
-Package: PE bag / blister case / color box, or any others as needed. 

Specifications:
-Driver unit: Dia 15mm
-Impedance: 32ohms
-Sensitivity: 109dB+/-3dB
-Max input power: 15mW
-Frequency Response: 20Hz-20,000Hz
-Short handsfree cord length:15cm
-Long handsfree cord length: 100cm+/-3%
-Plug type: Compatible for any mobile models as required.

Microphone specifications:
-Dimensions: 6×2.7mm
-Sensitivity: 58dB+/-3dB
-Frequency Response: 20Hz-20,000Hz