same as Google HTC Nexus One and HTC Desire HD
| Pin Number | Description |
| 1 | Left Speaker |
| 2 | Right Speaker |
| 3 | Ground |
| 4 | Microphone |
Looks the same as apple iPhone and LG, but different to Motorola, Nokia, Palm or SonyEricsson phones.
Button wiring pin 4 to 3.
No button pressed 47000 ohm
Phone/Play button 1 ohm
Next button 600 ohm
Back button 220 ohm
Messurment made on Nexus One headset.
The HTC HD2 Headphones are the sames as on the Hero and Nexus One and HTC Desire HD.
The wiring is correct but the button out is not Mesurable by an Ohmmeter while the is no signal.
The Middle Button is the same as on Apples iPhone Headphones but the outer buttons are incompatible and the Apple mic does not work on HTC Phones.
