These connectors are used in headsets manufactured by SANAKO (formerly Tandberg) for use with videoconferencing and in school language labs.
| Pin Number |
Color | Description (may be empty) |
| 1 | Blue | Microphone signal |
| 2 | White | Right audio channel |
| 3 | Red | Left audio channel |
| 4 | Green | Left ground |
| 5 | Yellow | Right ground |
| 6 | Black | Microphone ground |
The pins on this headset use the same levels as a regular microphone and pair of stereo headphones; a simple adapter can be made using two 3.5mm barrel connectors.
On the headsets I have here the pinout is:
White & Green = common (ground)
Black = right audio
Red = left audio
Blue = mic. ground
Yellow = +ve voltage AND mic. audio
correct
incorrect