LBSC Headset Adapter RJ9 Male to 3.5mm Female Headset Phone MIC Audio Splitter Adapter Cable 2 Pack (RJ9 Male to 3.5mm)

Why buy a second headset just for your home or office phone? Use the Adapter and your existing PC headset with a home or office phone that has a single 2.5mm plug.
A big productivity enhancer for home businesses, call centers, sales people, road warriors, or anyone who is on the phone all the time, but doesn't want to carry two headsets, one for the computer, and one for the phone.
This amazing adaptor is designed for anyone who uses Skype, RingCentral, or other computer-based Voice over Internet Protocol (VoIP) phone services. It works by converting the standard headset 3.5mm mic/audio plugs to a standard 2.5mm plug, allowing you to use your favorite PC computer/laptop headset with your phone or cell phone. This adapter is designed for use with headsets that have two 3.5 mm. plugs; one for the microphone and one for the headphones/earpiece(s). The adapter outputs binaural sound for stereo headsets, meaning you will hear sound out of both ears.
Compatibility
This list is not all inclusive. Please look up the specifications on your specific phone to see if it has a 2.5mm headset jack. Most older mobile phones (non s) and home phones have a 2.5mm jack.
Incompatible Phones:
* Nokia
* * Ericsson
Compatible Phones:
Altitouch
AT&T Synj, 992, 1080, 1070, 1040, 993
Blackberry Bold 9650, Style 9670, 58xx Series, 62xx Series, 6510, 7510, 6710, 6750, 7100, 7105, 7130e, 7130c, 7130g, 72xx Series, 7520, 77xx Series, Pearl 8100 and 8120, 8700c/f/g/r/v, 8703e, 8705g, 8830
Cisco SPA921, 501G, 502G, 504G, 508G, 509G, 525G, 7920, 7921 7921G, 7929, Powercube
General Electric (GE) home phone

• You can use your own headphone to chat on telephone with this cable.
• Use PC Headset with most VOIP phones that have a RJ9/RJ10/RJ22 headset jack (Not compatible with RJ11).
• Adapter cable with dual 3.5mm PC Headset jack to RJ9 Desk Phones Jack for Avaya, Cisco.
• Due to power and impedance general computer headset is relatively low, compared to the effect of professional telephone headset there is a gap. The pursuit of high-quality effects pro professional products recommended to choose better Since the phone is not unified production standards, this product is not available for all brands phone (compatible with about 90% telephone).
• Note: It can not work with 2 in 1 integrated headset.