Convert two 3.5mm plugs to single 4P4C RJ9/RJ10 Cisco headset plug Works great with Cisco VOIP office phones with a RJ9 headset jack Save money by buying PC headsets to use with your office...

Use a higher quality headset with your iPhone or smartphone Convert two 3.5mm (1/8 inch) plugs to single Smartphone 3.5mm plug (TRRS) Works with 3.5mm jack on Apple, Android, Blackberry, Windows,...

Convert two 3.5mm plugs to single 4P4C RJ9/RJ10 headset plug Works great with most VOIP phones with a RJ9/Rj10/Rj22 headset jack Save money by buying PC headsets to use with your office phone's...

Use headset on computer and home or office phone that has a 2.5mm headset jack Convert two 3.5mm plugs to single 2.5mm plug Reduce clutter with single headset Great for traveling, carry just one...

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 phone's handset jack. Reduce clutter...

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

Female RJ9/RJ10/RJ22 to Male 2.5mm plug headset adapter Convert your RJ9 Phone Headset to 2.5mm Save money by using your existing headset! Does not work with RJ11 (which is the size of the phone...

Dual control with 2 mute buttons Dual volume controls Listen-in only or train/take over call Works with wired or wireless headsets or a mix Use with Headset Buddy, Agent, Plantronics, Jabra, GN...

WIDE COMPATIBILITY: Compatible with All of the OVER iOS 11. Compatible iOS devices. CONNECT CAMERA：Transfer photos and videos from camera to compatible for your iOS devices, copy beautiful scenery...

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...

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...

  Turn your Bose QuietComfort 25 (QC25) headphones into the ultimate headset Uses the latest noise canceling technology so the person on the other end will think you're in a quiet...

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...

Monitor your line level audio recordings Includes attenuator that allows for line-level to mic-level conversion Works with most phones that have a combined headset and mic jack Allows the use...

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,...

Turn your Bose QuietComfort 15* headphones into the ultimate headset Uses the latest noise canceling technology so the person on the other end will think you're in a quiet office Great for use in...