The 3.5mm stereo audio adapter with microphone is a great item. Via this adapter you can use any other earphone in your Iphone to answer calls. It is also a good extension cable to use with the earphone which has short audio cable. This adapter is a great one with microphone. Via it  you can listen music and answer phone call with a normal earphone.<br /><br />- Color: Black<br />- Standard 3.5mm audio socket connects your favorite earphones<br />- Answer calls and Handsfree talk<br />- High quality built-in microphone with good sensitivity for recording and talk<br />- Shirt clip allows you to hold the microphone close for good reception<br />- Compatible with Iphone 3g/3GS/4<br />- Cable length: 70cm<br /><br />                                                                                                                                Dimensions: 0.00 in x 0.00 in x 0.00 in (0.0 cm x 0.0 cm x 0.0 cm)<br />Weight: 0.35 oz (10 g)<br /><br />