Model No : Iball i693MV Headset (Foldable with Retractable Mic)

Features : 
Compact foldable design
Unique retractable MIC
Comfortable double headband & cloth covered ear pads
High quality stereo sound
Trendy design with extra bass
On / Off switch for MIC
Changeable high and low bass effect
Fold compact & carry compact with bundled carry pouch

Headphone Driver Unit : 40 mm driver unit

Headphone Frequency Response : 20Hz~20 KHz

Headphone Sensitivity :  105dB +/- 3dB S.P.L.

Headphone Impedance : 32 Ohms

Microphone Driver Unit : 9.7 x 4.5 mm driver unit

Microphone Sensitivity : -38dB +/- 3dB

Microphone Impedance : 2.2k Ohms

Controls : Volume Controller, Mic On/Off Switch, Bass/Tone Control

Cord Lengths : Approx. 2.5 metres max.

Input/Output Plugs : 3.5mm Stereo

1 Years Warranty .