Description: Convert 3.5mm Smartphone plug to single RJ9 handset/headset plug,You can use your own headphone to chat on telephone with this cable Save money by buying a smartphone headset, or using your existing one with your office phone's headset jack Still get great quality stereo sound from headset via this adapter All functions on headset and phone would function same Easy Setup, Plug and Play Specification: Cable Length:Approx. 0.4m Package Includes: 1 Piece 3.5mm Female to RJ9 Male Cable
