HOW DO I PLACE AN LG BLUETOOTH HBM710 IN "DISCOVERY MODE" ?

Just came across your question while searching for the same answer - Here's what I found out:

When it's off, press and hold the on button for 5 seconds - it'll turn on, but keep holding until you hear the short beep - the light's on and you're where you want to be. Here's the full text that I found from the manual:


-With the HBM-710 off, press and hold the PWR/END button for 5 seconds
(You will hear a short beep and the LED indicator will stay red, when the device enters pairing mode)
-Using your handset, find the "Bluetooth menu" and "search for" or "add" new devices
- Select "LG HBM-710" from the list of devices and pair it with your headset
- When asked for the Pass/PIN code during the pairing procedure, please enter "0000" (4 zeros)
- Once pairing has been completed successfully, you will hear a beep
- After pairing successfully, be sure to "connect" to the LF HBM-710
- If you want to pair with other devices in the future, the headset must be in "Pairing mode"
- If it will be not connected the "Pairing" for three minutes, it will be turned off.