| Pin Number |
Pin Name |
Description |
| 1 | Tip | Left Audio Out |
| 2 | Ring 1 | Right Audio Out |
| 3 | Ring 2 | Ground |
| 4 | Sleeve | Microphone Input |
Compatible with Samsung SPH-M810, Samsung SPH-M800, Samsung SCH-R520, Samsung SPH-M560, Samsung SCH-R800, Samsung SCH-R560, Samsung SGH-R351, Samsung SCH-U490, Samsung SCH-r470, Samsung SPH-I350, Samsung SCH-U960, Samsung SCH-r810, Samsung SCH-R350, Samsung SPH-M850, Samsung SPH-M900, Samsung SPH-M630, Samsung SCH-R351, Samsung SCH-R850
Standard stereo earphones with 3 connections instead of 4 will work to listen to music. That's because standard 3 pin 3.5 mm stereo earbuds have the same pinout as above, except that there is no pin 4. That means that pin 4 is the same as pin 3, which means the microphone input will be grounded, which will work fine for listening to music.
However, a standard headset with one earpiece and a microphone will usually not work when plugged into these cell phones. For example, the Plantronics M214C headset will not work with the Samsung Moment or HTC Hero unless you make a special adaptor cord (using a simple standard 2.5 to 3.5 mm adaptor cord will usually not work). That's because the Plantronics M214C has this pinout on it's 2.5 mm plug:
Pin 1 TIP: Mic
Pin 2 Ring: Speaker
Pin 3 Sleeve: Ground