ienzaTM Headset Adapter for Headsets with Separate Headphone / Microphone Plugs - 3.5mm 4 Positions to 2 x 3 Positions 3.5mm M/F - Combo Audio Adapter - PC Headset to 3.5mm Smartphone Adapter: Convert Dual 3.5mm to 3.5mm Combo Audio Adapter: 2 x 3.5 mm Stereo jack plugs, 1 x 3.5 mm 4 Pole jack plug Turns a 3.5mm combo headphone/microphone port into two distinct ports - one 3.5mm headphone jack and one 3.5mm microphone port Allows the use of older audio accessories with newer computers and smartphones Compact design for maximum portability - a great solution to have on hand in your laptop bag ienza is a registered trademark. Use of the ienza trademark without the prior written consent of ienza, LLC. may constitute trademark infringement and unfair competition in violation of federal and state laws. ienza products are developed as cost-effective alternatives to OEM parts. They are not necessarily endorsed by the OEMs.