PDA connectors and cables for PalmOne Treo 650, Treo 700w, 750v, Tungsten T5, E2, TX, 680, LifeDrive and others?
3 pin stereo plug connector at the headset cabe
4 pin 3.5mm (2.5mm) plug connector at the headset cable may be used?
+3V supplied to pin 3 in the standard configuration (left)
In extended configuration (rigth). Push switch to A for stereo listening. Push switch to B for phone calls. Capacitor keeps +3V from damaging earpiece. Some users reports that this capacitor not needed (and should be removed for correct function)