Use PC headset with 2.5mm phone headset Jack OR 3.5mm smartphone/iPhone headset jack Convert two 3.5mm (1/8 inch) plugs to single 2.5mm or 3.5mm iPhone/Smartphone plug Includes dual 3.5mm to 2.5mm adapter PLUS 2.5mm to 3.5mm adapter for...

Use your headset with almost any office phone - 8 settings cover most phone models Combines our PC35-RJ9A and PC35-RJ9Cisco adapters into one universal! Convert two 3.5mm plugs to single 4P4C RJ9/RJ10 headset plug. Works with mono and...

Use your 3.5mm headset with almost any office phone - 8 settings cover most phone models including Cisco Combines the PH35-RJ9A of the PH35-RJ9Cisco adapters! Works great with most VOIP phones with a RJ9/Rj10/Rj22 headset...

Use PC Headset with USB port on PC or Mac Convert two 3.5mm (1/8 inch) plugs to single USB Type A female plug Great if your 3.5mm jack is broken Great for Mac computers so you don't have to buy iMic Stereo sound! 100% Satisfaction...

Use your headset with almost any office phone - 8 settings cover most phone models including Cisco Combines the PH25-RJ9A of the PH25-RJ9Cisco adapters! Converts 2.5mm plug to single 4P4C RJ9/RJ10 headset plug Works great with...

Adapts phones with a 3.5mm headset jack to either your corded headset amplifier jack, or to your wireless base station Easy to use and install Simple to use with most devices, amplifiers, and wireless base stations High-quality...

Dual control with 2 mute buttons Listen-in only or train/take over call Works with wired or wireless headsets or a mix Use with Headset Buddy, Plantronics, Jabra, GN Netcom and Sennheiser headsets Works with most makes of telephones with 2.5mm...

Separate mic and audio channels so you can use an external microphone for quality audio recording Allows you to use high-quality gaming headsets with your smartphone Fits so you can keep your phone case on Compact and rugged design that goes where...

Share audio with a friend, or send audio from smartphone to speakers/stereo while keeping headset plugged in Fits so you can keep your phone case on Use with credit card readers (Square & PayPal) and pair of headphones simultaneously...