In-Ear Headphones with in-Line Microphone with TRRS 3.5 mm Jack Plug (4 contacts)
Compatible with Apple iPhone, iPhone 3G/3Gs and iPhone 4/4s

Specifications
Type: Earphone with in-line Microphone
Speaker Size: 10 mm Diam.
Impedance: 32 Ohm
Frequency Response: 20 Hz ~ 20 KHz
Rated Power Input: 3 mW
Sensitivity: 58 dB+/-2 dB (1 KHz)
Cord Length: 120 cm

Connectors:
Audio and Microphone Input: Single 3.5 mm TRRS Jack Plug with four contacts

NOTE: Verify in your audio device documentation the 3.5 mm Jack Socket conform to standard measures and is compatible with four contacts TRRS connectors.

The in-line microphone can be used as a mobile phone headset exclusively on models that support 3.5 mm TRRS connectors.