I purchased a HFBLU-ST6, and I can not get it to connect to any Bluetooth device

Usually because the purchaser didn't read the instructions or because the instructions are badly written from Chinese. This is an eBay special. I wrote this Tip on connecting Bluetooth devices which mentions the step that is always missed.

https://www.fixya.com/support/r26362721-pairing_bluetooth_devices

iEssentials Bluetooth FP1 Headset, USB Car Charger ...

https://www.ebay.com > itm

iEssentials Bluetooth FP1 Headset, USB Car Charger Included ( IE-HFBLU-FP1 ) · Item Information · Item specifics · Shipping and handling · Sales Tax for an item # ...
US$12.95 · ‎In stock

That usually means it isin pairing mode. Charging some headsets from extended periods can sometimes reset the device requiring you to pair the device again.

Please review this guide for connecting a bluetooth headset to a PS3:
(Click here)
http://boardsus.playstation.com/playstation/board/message?message.uid=26900460

If you've found this information helpful, please give me a big thumbs-up when you rate my answer. Thanks!!

go to your phone and turn on your blue tooth.that might be the problem.

The oin number is 0000

Hi

These instructions should work for pairing your bluetooth device

1. First turn OFF the Bluetooth Headset
2. Place the Headset within a distance of 1 Foot of your phone.
3. Hold down the power key for about 8 seconds until indicator light blinks and starts to alternate between red and blue. This shows it is in pairing mode
4. Set your phone to search for a bluetooth device.
5. Select HFBLU-1K in the bluetooth device list and if required enter the password 1234


Hope this helps. Do let me know how you get on and remember to rate my answer. Thanks.

Check this link out :

http://www.pronto.com/Cellular-Innovations-HFBLU-AX1-Bluetooth-10303709844-CG

headset won't pair with me phone and i have tried 0000 and 1234 and 12345

For Cellular Innovations Mini Blue HFBLU-AX1C.
To Pair with Your Phone....

1. Turn OFF Bluetooth Headset
2. With Headset within 1 Ft of your phone, hold down power key for about 8 seconds until indicator light blinks in red and blue color quickly (in pairing mode)
3. Search bluetooth device through your mobile phone.
4. Select HFBLU-AX1C in the bluetooth device list and enter the password 1234.

For Cellular Innovations Mini Blue HFBLU-AX1C.
To Pair with Your Phone....

1. Turn OFF Bluetooth Headset
2. With Headset within 1 Ft of your phone, hold down power key for about 8 seconds until indicator light blinks in red and blue color quickly (in pairing mode)
3. Search bluetooth device through your mobile phone.
4. Select HFBLU-AX1C in the bluetooth device list and enter the password 1234.