CablesOnline 3.5mm TRRS 4-Position Male to Dual 3-Position 3.5mm TRS Female Headset Splitter Adapter (IP-AY02C) (1) 3.5 mm Mini-Jack (4 Position-TRRS) Male (2) 3.5 mm Mini-Jack (3 Position-TRS) Female Overcomes the limitation of some laptop audio ports, by turning a single 4-position 3.5mm audio port into two distinct 3-position 3.5mm audio ports, allowing you to connect a microphone as well as external speakers Can be used with any portable device that uses a 4 position 3.5mm jack, such as iPhone, iPod and iPad devices&lt; Allows the use of older audio accessories with newer computers ; RoHS Compliant