Lg hbm 550

please follow the link to the lg support site for your hbm-550 for guide to setup your headset with your phone
http://lg.pairx.co.uk/

My iphone 4 was asking for my pin number using LG-HBM 900, I used 0000 and it paired okay.

The passkey is 0000 (Four Zeros)

Here's the manual:
http://www.megaaccy.com/HBM_550.pdf

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If you look in the manual in the link give by jeffsgirl903 it says "When asked for the Pass/PIN code during the pairing procedure,
please enter “0000” (4Zeros)."

YES IT SHOULD BE ABLE TO BE PAIRED TO AS MANY PHONES AS YOU WANT BUT WILL ONLY WORK ON ONE AT A TIME.

no disrespect garbage unit get rid of it its not worth the money

Well my user manual for HBM-550 says:

Prior to using the Headset for the first time, you must pair it with a Bluetooth enabled handset.
With the HBM-550 off, press and hold the Pwr/End button for 5 seconds,
You will hear two short beeps and the LED indicator will flicker in red and blue alternately, when the divice enters Paring Mode.

Using your Handset, find the Bluetooth Menu and "search for" or "add" new devices.
Select "LG HBM-550" from the list of devices and pair it with your handset.
When asked for the pass/PIN code during the paring procedure, please enter "0000" (4zeros).
Once paring has completed successfully, you will hear a beep.
After paring successfully, be sure to "Connect" to the HBM-550.
If you want to pair with other devices in the future, the headset must be placed in pairing Mode.
If the HBM 550 is in "Paring Mode" for 3 minutes, without being paired to a device, the Headset will automatically turn off.

Ok kids here you go.
First turn your blue tooth off. Now hold the on/off button for at least 5 seconds (this is very important. You must hold it till the light blinks blue and red.) Now on your phone search for the device. Select the HBM- 550 and put in your 0000.

You must have the headset in pairing mode first.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Your welcome.

The passkey is 0000
:]

1st switch on bluetooth for both devices!
2nd go to your bluetooth menu in your phone
3rd click on pair devices
make sure that your phone is visible to other bluetooth device
4th select the device and click on pair devices!
its done!