Specifications Interface Type Mini DIN 6 pin standard YAESU DATA port 3 5MM stereo jackCore Functions Bi directional audio transmission PTT transmission controlCompatible Devices YAESU FT 891 FT 857 FT 817 FT 991 FT 450D and other radios with Mini DIN 6 pin portsCable Length 1 meter excluding plugs Features 1 Professionally compatible with YAESU radios Mini DIN 6 pin DATA interface to 3 5mm stereo plug clear pin mapping stable signal transmission 2 Supports bidirectional audio transmission enabling high fidelity reverse audio exchange between the radio and computer sound card compatible with FT8 JT65 codec software such as WSJTX 3 Reserved PTT transmit control low level trigger allowing the use of a mobile phone audio port to enable the radio s VOXs function as an alternative meeting diverse control needs 4 Widely compatible compatible with most YAESU radios such as FT 891 857 817 991 450D and other Mini DIN 6 interface compatible radios 5 Suitable for multiple scenarios including Echolink network communication remote voice repeater voice recording and archiving VoIP gateway integration and audio workstation applications Package Included 1 x Mini DIN6 to 3 5MM connector cable