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...

Convert 2.5mm headset plug to single 4P4C RJ9/RJ10 plug for your VOIP phone Compatible with most IP phone headset jacks: Nortel, Avaya, Aastra, ESI, NEC, RCA, Mitel, Lucent, Shoretel, Siemens, and more... Save money by buying standard phone...

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...

Compatible with Apple EarPod and other Apple / CTIA based headphones or headsets.  Convert 3.5mm Smartphone plug to single 4P4C RJ9/RJ10 handset plug. Save money by buying a smartphone headset, or using your existing one with your Aastra,...

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...

100% MFi-certified. The only one the market that is not made by Apple. Compatible with iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X and devices running iOS 10.3 and above. Supports inline control of voice calls with accept/decline...

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...

Connect standard 3.5 mm audio plug — from headphones or speakers — to your favorite USB-C device Simple plug and play. One USB-C male interface, one Audio Headphone Aux 1/8 inch female jack Built in High Quality Hi-res DAC audio chip...

iPhone - Android 1/4" line-level to mic-level audio converter input adapter 1/8 inch (3.5 mm) 4 conductor TRRS Male to 1/4 inch (6.35 mm) microphone input plug with built-in attenuator Connect your smartphone to a mixer or soundboard without a...

100% MFi-certified. Compatible with iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X and devices running iOS 10.3 and above The only adapter on the market that allows you to connect your favorite gaming or work USB headset and iOS...